31103201213032 has 48 divisors (see below), whose sum is σ = 63157003601580. Its totient is φ = 14353645363200.

The previous prime is 31103201212987. The next prime is 31103201213039. The reversal of 31103201213032 is 23031210230113.

It can be written as a sum of positive squares in 6 ways, for example, as 123668975556 + 30979532237476 = 351666^2 + 5565926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31103201212994 and 31103201213012.

It is not an unprimeable number, because it can be changed into a prime (31103201213039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10261032 + ... + 12941992.

Almost surely, 2^{31103201213032} is an apocalyptic number.

It is an amenable number.

31103201213032 is an abundant number, since it is smaller than the sum of its proper divisors (32053802388548).

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

31103201213032 is a wasteful number, since it uses less digits than its factorization.

31103201213032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689574 (or 2689557 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31103201213032 its reverse (23031210230113), we get a palindrome (54134411443145).

The spelling of 31103201213032 in words is "thirty-one trillion, one hundred three billion, two hundred one million, two hundred thirteen thousand, thirty-two".