22315020531 has 16 divisors (see below), whose sum is σ = 30837866400. Its totient is φ = 14341805568.

The previous prime is 22315020517. The next prime is 22315020551. The reversal of 22315020531 is 13502051322.

It is a happy number.

It is not a de Polignac number, because 22315020531 - 2¹³ = 22315012339 is a prime.

It is a super-3 number, since 3×22315020531³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22315020551) 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, 910086 + ... + 934283.

It is an arithmetic number, because the mean of its divisors is an integer number (1927366650).

Almost surely, 2^22315020531 is an apocalyptic number.

22315020531 is a deficient number, since it is larger than the sum of its proper divisors (8522845869).

22315020531 is a wasteful number, since it uses less digits than its factorization.

22315020531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844518.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 22315020531 its reverse (13502051322), we get a palindrome (35817071853).

The spelling of 22315020531 in words is "twenty-two billion, three hundred fifteen million, twenty thousand, five hundred thirty-one".