31232252000 has 384 divisors, whose sum is σ = 84778057728. Its totient is φ = 11269632000.

The previous prime is 31232251961. The next prime is 31232252011. The reversal of 31232252000 is 25223213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134043884 + ... + 134044116.

It is an arithmetic number, because the mean of its divisors is an integer number (220776192).

Almost surely, 2^31232252000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31232252000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42389028864).

31232252000 is an abundant number, since it is smaller than the sum of its proper divisors (53545805728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31232252000 is a wasteful number, since it uses less digits than its factorization.

31232252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 31232252000 its reverse (25223213), we get a palindrome (31257475213).

The spelling of 31232252000 in words is "thirty-one billion, two hundred thirty-two million, two hundred fifty-two thousand".