31003100030 has 32 divisors (see below), whose sum is σ = 63787144896. Its totient is φ = 10628077824.

The previous prime is 31003100017. The next prime is 31003100041. The reversal of 31003100030 is 3000130013.

It is a super-2 number, since 2×31003100030² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003099984 and 31003100020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514442 + ... + 571538.

It is an arithmetic number, because the mean of its divisors is an integer number (1993348278).

Almost surely, 2^31003100030 is an apocalyptic number.

31003100030 is an abundant number, since it is smaller than the sum of its proper divisors (32784044866).

31003100030 is a wasteful number, since it uses less digits than its factorization.

31003100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64868.

The product of its (nonzero) digits is 27, while the sum is 11.

Adding to 31003100030 its reverse (3000130013), we get a palindrome (34003230043).

The spelling of 31003100030 in words is "thirty-one billion, three million, one hundred thousand, thirty".