20130211031 has 16 divisors (see below), whose sum is σ = 23109858816. Its totient is φ = 17176690656.

The previous prime is 20130211019. The next prime is 20130211033. The reversal of 20130211031 is 13011203102.

It is a cyclic number.

It is not a de Polignac number, because 20130211031 - 2²⁶ = 20063102167 is a prime.

It is a super-2 number, since 2×20130211031² (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 = 20130210997 and 20130211015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130211033) 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, 1740590 + ... + 1752116.

It is an arithmetic number, because the mean of its divisors is an integer number (1444366176).

Almost surely, 2^20130211031 is an apocalyptic number.

20130211031 is a deficient number, since it is larger than the sum of its proper divisors (2979647785).

20130211031 is a wasteful number, since it uses less digits than its factorization.

20130211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12638.

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

Adding to 20130211031 its reverse (13011203102), we get a palindrome (33141414133).

The spelling of 20130211031 in words is "twenty billion, one hundred thirty million, two hundred eleven thousand, thirty-one".