231111320411042 has 4 divisors (see below), whose sum is σ = 346666980616566. Its totient is φ = 115555660205520.

The previous prime is 231111320411033. The next prime is 231111320411051. The reversal of 231111320411042 is 240114023111132.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (231111320411033) and next prime (231111320411051).

It can be written as a sum of positive squares in only one way, i.e., 223471674162961 + 7639646248081 = 14948969^2 + 2763991^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57777830102759 + ... + 57777830102762.

Almost surely, 2^{231111320411042} is an apocalyptic number.

231111320411042 is a deficient number, since it is larger than the sum of its proper divisors (115555660205524).

231111320411042 is a wasteful number, since it uses less digits than its factorization.

231111320411042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115555660205523.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 231111320411042 its reverse (240114023111132), we get a palindrome (471225343522174).

The spelling of 231111320411042 in words is "two hundred thirty-one trillion, one hundred eleven billion, three hundred twenty million, four hundred eleven thousand, forty-two".