111354450131 has 4 divisors (see below), whose sum is σ = 111528170664. Its totient is φ = 111180729600.

The previous prime is 111354450083. The next prime is 111354450143. The reversal of 111354450131 is 131054453111.

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

It is a cyclic number.

It is not a de Polignac number, because 111354450131 - 2¹⁴ = 111354433747 is a prime.

It is a super-2 number, since 2×111354450131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111354450094 and 111354450103.

It is not an unprimeable number, because it can be changed into a prime (111354450161) 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, 86859305 + ... + 86860586.

It is an arithmetic number, because the mean of its divisors is an integer number (27882042666).

Almost surely, 2^111354450131 is an apocalyptic number.

111354450131 is a deficient number, since it is larger than the sum of its proper divisors (173720533).

111354450131 is an equidigital number, since it uses as much as digits as its factorization.

111354450131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173720532.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 111354450131 in words is "one hundred eleven billion, three hundred fifty-four million, four hundred fifty thousand, one hundred thirty-one".