21310201031 has 8 divisors (see below), whose sum is σ = 24404528640. Its totient is φ = 18228376728.

The previous prime is 21310201021. The next prime is 21310201037. The reversal of 21310201031 is 13010201312.

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

It is a cyclic number.

It is not a de Polignac number, because 21310201031 - 2¹⁴ = 21310184647 is a prime.

It is a super-2 number, since 2×21310201031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21310200997 and 21310201015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310201037) 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, 3122171 + ... + 3128988.

It is an arithmetic number, because the mean of its divisors is an integer number (3050566080).

Almost surely, 2^21310201031 is an apocalyptic number.

21310201031 is a deficient number, since it is larger than the sum of its proper divisors (3094327609).

21310201031 is an equidigital number, since it uses as much as digits as its factorization.

21310201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251653.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21310201031 its reverse (13010201312), we get a palindrome (34320402343).

The spelling of 21310201031 in words is "twenty-one billion, three hundred ten million, two hundred one thousand, thirty-one".