31401103534 has 24 divisors (see below), whose sum is σ = 48355167960. Its totient is φ = 15293288640.

The previous prime is 31401103477. The next prime is 31401103543. The reversal of 31401103534 is 43530110413.

It is a junction number, because it is equal to n+sod(n) for n = 31401103499 and 31401103508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2208472 + ... + 2222644.

It is an arithmetic number, because the mean of its divisors is an integer number (2014798665).

Almost surely, 2^31401103534 is an apocalyptic number.

31401103534 is a deficient number, since it is larger than the sum of its proper divisors (16954064426).

31401103534 is a wasteful number, since it uses less digits than its factorization.

31401103534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14916 (or 14875 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 31401103534 its reverse (43530110413), we get a palindrome (74931213947).

The spelling of 31401103534 in words is "thirty-one billion, four hundred one million, one hundred three thousand, five hundred thirty-four".