31003100010103 has 16 divisors (see below), whose sum is σ = 33486250896000. Its totient is φ = 28534114135296.

The previous prime is 31003100010097. The next prime is 31003100010107. The reversal of 31003100010103 is 30101000130013.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31003100010103 - 2²⁵ = 31003066455671 is a prime.

It is a super-2 number, since 2×31003100010103² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003100010107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3518898 + ... + 8624896.

It is an arithmetic number, because the mean of its divisors is an integer number (2092890681000).

Almost surely, 2^{31003100010103} is an apocalyptic number.

31003100010103 is a deficient number, since it is larger than the sum of its proper divisors (2483150885897).

31003100010103 is a wasteful number, since it uses less digits than its factorization.

31003100010103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107386.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 31003100010103 its reverse (30101000130013), we get a palindrome (61104100140116).

The spelling of 31003100010103 in words is "thirty-one trillion, three billion, one hundred million, ten thousand, one hundred three".