31200232000 has 224 divisors, whose sum is σ = 88798334976. Its totient is φ = 10637568000.

The previous prime is 31200231973. The next prime is 31200232009. The reversal of 31200232000 is 23200213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (31200232009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10694542 + ... + 10697458.

Almost surely, 2^31200232000 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 31200232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44399167488).

31200232000 is an abundant number, since it is smaller than the sum of its proper divisors (57598102976).

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

31200232000 is a wasteful number, since it uses less digits than its factorization.

31200232000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142 (or 3122 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 31200232000 its reverse (23200213), we get a palindrome (31223432213).

The spelling of 31200232000 in words is "thirty-one billion, two hundred million, two hundred thirty-two thousand".