21150034262331 has 32 divisors (see below), whose sum is σ = 30613011824640. Its totient is φ = 12910980023424.

The previous prime is 21150034262297. The next prime is 21150034262339. The reversal of 21150034262331 is 13326243005112.

It is not a de Polignac number, because 21150034262331 - 2⁶ = 21150034262267 is a prime.

It is a super-2 number, since 2×21150034262331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21150034262292 and 21150034262301.

It is not an unprimeable number, because it can be changed into a prime (21150034262339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32961441 + ... + 33596973.

It is an arithmetic number, because the mean of its divisors is an integer number (956656619520).

Almost surely, 2^{21150034262331} is an apocalyptic number.

21150034262331 is a deficient number, since it is larger than the sum of its proper divisors (9462977562309).

21150034262331 is a wasteful number, since it uses less digits than its factorization.

21150034262331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642395.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 21150034262331 its reverse (13326243005112), we get a palindrome (34476277267443).

The spelling of 21150034262331 in words is "twenty-one trillion, one hundred fifty billion, thirty-four million, two hundred sixty-two thousand, three hundred thirty-one".