2031323977542 has 32 divisors (see below), whose sum is σ = 4203432806400. Its totient is φ = 653651556768.

The previous prime is 2031323977471. The next prime is 2031323977583. The reversal of 2031323977542 is 2457793231302.

It is a junction number, because it is equal to n+sod(n) for n = 2031323977491 and 2031323977500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97533 + ... + 2017959.

It is an arithmetic number, because the mean of its divisors is an integer number (131357275200).

Almost surely, 2^{2031323977542} is an apocalyptic number.

2031323977542 is an abundant number, since it is smaller than the sum of its proper divisors (2172108828858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031323977542 is a wasteful number, since it uses less digits than its factorization.

2031323977542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926540.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 2031323977542 in words is "two trillion, thirty-one billion, three hundred twenty-three million, nine hundred seventy-seven thousand, five hundred forty-two".