111203312312131 has 64 divisors (see below), whose sum is σ = 123012097027456. Its totient is φ = 99902215987200.

The previous prime is 111203312312129. The next prime is 111203312312221. The reversal of 111203312312131 is 131213213302111.

It is a cyclic number.

It is not a de Polignac number, because 111203312312131 - 2¹ = 111203312312129 is a prime.

It is a super-2 number, since 2×111203312312131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111203312312096 and 111203312312105.

It is not an unprimeable number, because it can be changed into a prime (111203312352131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24673463980 + ... + 24673468486.

It is an arithmetic number, because the mean of its divisors is an integer number (1922064016054).

Almost surely, 2^{111203312312131} is an apocalyptic number.

111203312312131 is a deficient number, since it is larger than the sum of its proper divisors (11808784715325).

111203312312131 is a wasteful number, since it uses less digits than its factorization.

111203312312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 111203312312131 its reverse (131213213302111), we get a palindrome (242416525614242).

The spelling of 111203312312131 in words is "one hundred eleven trillion, two hundred three billion, three hundred twelve million, three hundred twelve thousand, one hundred thirty-one".