21132041031 has 12 divisors (see below), whose sum is σ = 30528542200. Its totient is φ = 14085958320.

The previous prime is 21132041027. The next prime is 21132041081. The reversal of 21132041031 is 13014023112.

It is not a de Polignac number, because 21132041031 - 2² = 21132041027 is a prime.

It is a super-2 number, since 2×21132041031² (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 = 21132040995 and 21132041013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132041081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106405 + ... + 231486.

Almost surely, 2^21132041031 is an apocalyptic number.

21132041031 is a deficient number, since it is larger than the sum of its proper divisors (9396501169).

21132041031 is a wasteful number, since it uses less digits than its factorization.

21132041031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344846 (or 344843 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21132041031 its reverse (13014023112), we get a palindrome (34146064143).

The spelling of 21132041031 in words is "twenty-one billion, one hundred thirty-two million, forty-one thousand, thirty-one".