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12401441131 = 93113133187
BaseRepresentation
bin10111000110010111…
…01111100101101011
31012000021111111001111
423203023233211223
5200344232104011
65410325531151
7616214340022
oct134313574553
935007444044
1012401441131
115294321302
1224a1273ab7
13122838c061
148590798b9
154c8b1b121
hex2e32ef96b

12401441131 has 4 divisors (see below), whose sum is σ = 12401667432. Its totient is φ = 12401214832.

The previous prime is 12401441119. The next prime is 12401441141. The reversal of 12401441131 is 13114410421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12401441131 is a prime.

It is a super-2 number, since 2×124014411312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401441111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26520 + ... + 159706.

It is an arithmetic number, because the mean of its divisors is an integer number (3100416858).

Almost surely, 212401441131 is an apocalyptic number.

12401441131 is a deficient number, since it is larger than the sum of its proper divisors (226301).

12401441131 is an equidigital number, since it uses as much as digits as its factorization.

12401441131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226300.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12401441131 its reverse (13114410421), we get a palindrome (25515851552).

The spelling of 12401441131 in words is "twelve billion, four hundred one million, four hundred forty-one thousand, one hundred thirty-one".

Divisors: 1 93113 133187 12401441131