10211320031 has 4 divisors (see below), whose sum is σ = 11139621864. Its totient is φ = 9283018200.

The previous prime is 10211320019. The next prime is 10211320033. The reversal of 10211320031 is 13002311201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211320031 is a prime.

It is a super-2 number, since 2×10211320031² (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 = 10211319988 and 10211320015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211320033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464150900 + ... + 464150921.

It is an arithmetic number, because the mean of its divisors is an integer number (2784905466).

Almost surely, 2^10211320031 is an apocalyptic number.

10211320031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10211320031 is a deficient number, since it is larger than the sum of its proper divisors (928301833).

10211320031 is an equidigital number, since it uses as much as digits as its factorization.

10211320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928301832.

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

Adding to 10211320031 its reverse (13002311201), we get a palindrome (23213631232).

The spelling of 10211320031 in words is "ten billion, two hundred eleven million, three hundred twenty thousand, thirty-one".