31012340200 has 96 divisors (see below), whose sum is σ = 72580455000. Its totient is φ = 12323225600.

The previous prime is 31012340171. The next prime is 31012340221. The reversal of 31012340200 is 204321013.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 13861294756 + 17151045444 = 117734^2 + 130962^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25233186 + ... + 25234414.

Almost surely, 2^31012340200 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 31012340200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36290227500).

31012340200 is an abundant number, since it is smaller than the sum of its proper divisors (41568114800).

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

31012340200 is a wasteful number, since it uses less digits than its factorization.

31012340200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31012340200 its reverse (204321013), we get a palindrome (31216661213).

The spelling of 31012340200 in words is "thirty-one billion, twelve million, three hundred forty thousand, two hundred".