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3131300303131 = 721113446881733
BaseRepresentation
bin101101100100010000000…
…010101101000100011011
3102002100102200221202122011
4231210100002231010123
5402300400334200011
610354255520410351
7442141353263500
oct55442002550433
912070380852564
103131300303131
11aa7a8242a8a0
12426a4a1769b7
13199384c17670
14ab7acd614a7
15566bb807621
hex2d9100ad11b

3131300303131 has 24 divisors (see below), whose sum is σ = 4279339484784. Its totient is φ = 2252283929280.

The previous prime is 3131300303113. The next prime is 3131300303149. The reversal of 3131300303131 is 1313030031313.

It is an interprime number because it is at equal distance from previous prime (3131300303113) and next prime (3131300303149).

It is not a de Polignac number, because 3131300303131 - 211 = 3131300301083 is a prime.

It is a super-2 number, since 2×31313003031312 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3131300303171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223433860 + ... + 223447873.

It is an arithmetic number, because the mean of its divisors is an integer number (178305811866).

Almost surely, 23131300303131 is an apocalyptic number.

3131300303131 is a deficient number, since it is larger than the sum of its proper divisors (1148039181653).

3131300303131 is a wasteful number, since it uses less digits than its factorization.

3131300303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446881771 (or 446881764 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 22.

Adding to 3131300303131 its reverse (1313030031313), we get a palindrome (4444330334444).

The spelling of 3131300303131 in words is "three trillion, one hundred thirty-one billion, three hundred million, three hundred three thousand, one hundred thirty-one".

Divisors: 1 7 11 13 49 77 91 143 539 637 1001 7007 446881733 3128172131 4915699063 5809462529 21897204917 34409893441 40666237703 63904087819 240869254087 284663663921 447328614733 3131300303131