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13131302221111 = 109235675111837
BaseRepresentation
bin1011111100010101111010…
…0110101011010100110111
31201111100012000210110102211
42333011132212223110313
53210120401332033421
643532234214514251
72523463624146634
oct277053646532467
951440160713384
1013131302221111
114202a54853918
121580b26665987
13743379594b89
143357b642d18b
1517b8969c89e1
hexbf15e9ab537

13131302221111 has 8 divisors (see below), whose sum is σ = 13252337778240. Its totient is φ = 13010276935008.

The previous prime is 13131302221057. The next prime is 13131302221117. The reversal of 13131302221111 is 11112220313131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13131302221111 - 215 = 13131302188343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131302221117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12885 + ... + 5124721.

It is an arithmetic number, because the mean of its divisors is an integer number (1656542222280).

Almost surely, 213131302221111 is an apocalyptic number.

13131302221111 is a deficient number, since it is larger than the sum of its proper divisors (121035557129).

13131302221111 is a wasteful number, since it uses less digits than its factorization.

13131302221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135513.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 13131302221111 its reverse (11112220313131), we get a palindrome (24243522534242).

The spelling of 13131302221111 in words is "thirteen trillion, one hundred thirty-one billion, three hundred two million, two hundred twenty-one thousand, one hundred eleven".

Divisors: 1 109 23567 2568803 5111837 557190233 120470662579 13131302221111