21150413031 has 32 divisors (see below), whose sum is σ = 32589686016. Its totient is φ = 12058560000.

The previous prime is 21150413029. The next prime is 21150413047. The reversal of 21150413031 is 13031405112.

It is not a de Polignac number, because 21150413031 - 2¹ = 21150413029 is a prime.

It is a super-2 number, since 2×21150413031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21150412989 and 21150413007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21150413731) 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 31 ways as a sum of consecutive naturals, for example, 1322181 + ... + 1338081.

It is an arithmetic number, because the mean of its divisors is an integer number (1018427688).

Almost surely, 2^21150413031 is an apocalyptic number.

21150413031 is a deficient number, since it is larger than the sum of its proper divisors (11439272985).

21150413031 is a wasteful number, since it uses less digits than its factorization.

21150413031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18303.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 21150413031 its reverse (13031405112), we get a palindrome (34181818143).

The spelling of 21150413031 in words is "twenty-one billion, one hundred fifty million, four hundred thirteen thousand, thirty-one".