10031121200 has 60 divisors (see below), whose sum is σ = 24193790040. Its totient is φ = 3996794880.

The previous prime is 10031121173. The next prime is 10031121229. The reversal of 10031121200 is 212113001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54011 + ... + 151589.

It is an arithmetic number, because the mean of its divisors is an integer number (403229834).

Almost surely, 2^10031121200 is an apocalyptic number.

10031121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10031121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12096895020).

10031121200 is an abundant number, since it is smaller than the sum of its proper divisors (14162668840).

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

10031121200 is a wasteful number, since it uses less digits than its factorization.

10031121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97854 (or 97843 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10031121200 its reverse (212113001), we get a palindrome (10243234201).

The spelling of 10031121200 in words is "ten billion, thirty-one million, one hundred twenty-one thousand, two hundred".