31713002070 has 32 divisors (see below), whose sum is σ = 80588335968. Its totient is φ = 7959341568.

The previous prime is 31713002059. The next prime is 31713002081. The reversal of 31713002070 is 7020031713.

It is an interprime number because it is at equal distance from previous prime (31713002059) and next prime (31713002081).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31713002070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31090669 + ... + 31091688.

It is an arithmetic number, because the mean of its divisors is an integer number (2518385499).

Almost surely, 2^31713002070 is an apocalyptic number.

31713002070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31713002070 is an abundant number, since it is smaller than the sum of its proper divisors (48875333898).

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

31713002070 is a wasteful number, since it uses less digits than its factorization.

31713002070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62182384.

The product of its (nonzero) digits is 882, while the sum is 24.

Adding to 31713002070 its reverse (7020031713), we get a palindrome (38733033783).

The spelling of 31713002070 in words is "thirty-one billion, seven hundred thirteen million, two thousand, seventy".