31542132044 has 24 divisors (see below), whose sum is σ = 58521421728. Its totient is φ = 14824129280.

The previous prime is 31542132029. The next prime is 31542132053. The reversal of 31542132044 is 44023124513.

It is a super-2 number, since 2×31542132044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31542131998 and 31542132016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247472 + ... + 352599.

It is an arithmetic number, because the mean of its divisors is an integer number (2438392572).

Almost surely, 2^31542132044 is an apocalyptic number.

31542132044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31542132044 is a deficient number, since it is larger than the sum of its proper divisors (26979289684).

31542132044 is a wasteful number, since it uses less digits than its factorization.

31542132044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600865 (or 600863 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 31542132044 its reverse (44023124513), we get a palindrome (75565256557).

The spelling of 31542132044 in words is "thirty-one billion, five hundred forty-two million, one hundred thirty-two thousand, forty-four".