31003103100001 has 4 divisors (see below), whose sum is σ = 31003114240000. Its totient is φ = 31003091960004.

The previous prime is 31003103099993. The next prime is 31003103100023. The reversal of 31003103100001 is 10000130130013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31003103100001 - 2³ = 31003103099993 is a prime.

It is a super-2 number, since 2×31003103100001² (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 (31003103100041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563600 + ... + 8281198.

It is an arithmetic number, because the mean of its divisors is an integer number (7750778560000).

Almost surely, 2^{31003103100001} is an apocalyptic number.

It is an amenable number.

31003103100001 is a deficient number, since it is larger than the sum of its proper divisors (11139999).

31003103100001 is an equidigital number, since it uses as much as digits as its factorization.

31003103100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139998.

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

Adding to 31003103100001 its reverse (10000130130013), we get a palindrome (41003233230014).

The spelling of 31003103100001 in words is "thirty-one trillion, three billion, one hundred three million, one hundred thousand, one".