31703040000 has 540 divisors, whose sum is σ = 117107666676. Its totient is φ = 8257536000.

The previous prime is 31703039983. The next prime is 31703040013. The reversal of 31703040000 is 4030713.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 737279979 + ... + 737280021.

Almost surely, 2^31703040000 is an apocalyptic number.

31703040000 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 31703040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58553833338).

31703040000 is an abundant number, since it is smaller than the sum of its proper divisors (85404626676).

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

31703040000 is an frugal number, since it uses more digits than its factorization.

31703040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

Adding to 31703040000 its reverse (4030713), we get a palindrome (31707070713).

The spelling of 31703040000 in words is "thirty-one billion, seven hundred three million, forty thousand".