21325052312 has 32 divisors (see below), whose sum is σ = 40300869600. Its totient is φ = 10578336000.

The previous prime is 21325052239. The next prime is 21325052327.

It is a happy number.

21325052312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21325052312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966362 + ... + 988182.

It is an arithmetic number, because the mean of its divisors is an integer number (1259402175).

Almost surely, 2^21325052312 is an apocalyptic number.

It is an amenable number.

21325052312 is a deficient number, since it is larger than the sum of its proper divisors (18975817288).

21325052312 is a wasteful number, since it uses less digits than its factorization.

21325052312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22787 (or 22783 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 213250 and 52312, that added together give a palindrome (265562).

The spelling of 21325052312 in words is "twenty-one billion, three hundred twenty-five million, fifty-two thousand, three hundred twelve".