31100020103203 has 8 divisors (see below), whose sum is σ = 31104106358400. Its totient is φ = 31095934117248.

The previous prime is 31100020103183. The next prime is 31100020103237. The reversal of 31100020103203 is 30230102000113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31100020103203 is a prime.

It is a super-2 number, since 2×31100020103203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31100020103293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327014683 + ... + 327109771.

It is an arithmetic number, because the mean of its divisors is an integer number (3888013294800).

Almost surely, 2^{31100020103203} is an apocalyptic number.

31100020103203 is a deficient number, since it is larger than the sum of its proper divisors (4086255197).

31100020103203 is a wasteful number, since it uses less digits than its factorization.

31100020103203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134621.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31100020103203 its reverse (30230102000113), we get a palindrome (61330122103316).

The spelling of 31100020103203 in words is "thirty-one trillion, one hundred billion, twenty million, one hundred three thousand, two hundred three".