31306770000 has 800 divisors, whose sum is σ = 124952002560. Its totient is φ = 7439040000.

The previous prime is 31306769993. The next prime is 31306770013. The reversal of 31306770000 is 7760313.

It is a super-2 number, since 2×31306770000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 246509937 + ... + 246510063.

Almost surely, 2^31306770000 is an apocalyptic number.

31306770000 is a gapful number since it is divisible by the number (30) 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 31306770000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62476001280).

31306770000 is an abundant number, since it is smaller than the sum of its proper divisors (93645232560).

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

31306770000 is a wasteful number, since it uses less digits than its factorization.

31306770000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The spelling of 31306770000 in words is "thirty-one billion, three hundred six million, seven hundred seventy thousand".