21022034313 has 16 divisors (see below), whose sum is σ = 32055699456. Its totient is φ = 12004294800.

The previous prime is 21022034303. The next prime is 21022034347. The reversal of 21022034313 is 31343022012.

It is not a de Polignac number, because 21022034313 - 2⁵ = 21022034281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 21022034313.

It is not an unprimeable number, because it can be changed into a prime (21022034303) 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, 314481 + ... + 375422.

It is an arithmetic number, because the mean of its divisors is an integer number (2003481216).

Almost surely, 2^21022034313 is an apocalyptic number.

It is an amenable number.

21022034313 is a deficient number, since it is larger than the sum of its proper divisors (11033665143).

21022034313 is a wasteful number, since it uses less digits than its factorization.

21022034313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691364.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21022034313 its reverse (31343022012), we get a palindrome (52365056325).

The spelling of 21022034313 in words is "twenty-one billion, twenty-two million, thirty-four thousand, three hundred thirteen".