31011342111142 has 4 divisors (see below), whose sum is σ = 46517013166716. Its totient is φ = 15505671055570.

The previous prime is 31011342111131. The next prime is 31011342111151. The reversal of 31011342111142 is 24111124311013.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7752835527784 + ... + 7752835527787.

It is an arithmetic number, because the mean of its divisors is an integer number (11629253291679).

Almost surely, 2^{31011342111142} is an apocalyptic number.

31011342111142 is a deficient number, since it is larger than the sum of its proper divisors (15505671055574).

31011342111142 is a wasteful number, since it uses less digits than its factorization.

31011342111142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15505671055573.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 31011342111142 its reverse (24111124311013), we get a palindrome (55122466422155).

The spelling of 31011342111142 in words is "thirty-one trillion, eleven billion, three hundred forty-two million, one hundred eleven thousand, one hundred forty-two".