31031676542 has 4 divisors (see below), whose sum is σ = 46547514816. Its totient is φ = 15515838270.

The previous prime is 31031676523. The next prime is 31031676551. The reversal of 31031676542 is 24567613013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31031676496 and 31031676505.

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, 7757919134 + ... + 7757919137.

It is an arithmetic number, because the mean of its divisors is an integer number (11636878704).

Almost surely, 2^31031676542 is an apocalyptic number.

31031676542 is a deficient number, since it is larger than the sum of its proper divisors (15515838274).

31031676542 is a wasteful number, since it uses less digits than its factorization.

31031676542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15515838273.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 31031676542 in words is "thirty-one billion, thirty-one million, six hundred seventy-six thousand, five hundred forty-two".