31134243702 has 32 divisors (see below), whose sum is σ = 66014383104. Its totient is φ = 9771861600.

The previous prime is 31134243689. The next prime is 31134243703. The reversal of 31134243702 is 20734243113.

It is a super-2 number, since 2×31134243702² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31134243702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134243703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2255124 + ... + 2268887.

It is an arithmetic number, because the mean of its divisors is an integer number (2062949472).

Almost surely, 2^31134243702 is an apocalyptic number.

31134243702 is an abundant number, since it is smaller than the sum of its proper divisors (34880139402).

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

31134243702 is a wasteful number, since it uses less digits than its factorization.

31134243702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524084.

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 31134243702 its reverse (20734243113), we get a palindrome (51868486815).

The spelling of 31134243702 in words is "thirty-one billion, one hundred thirty-four million, two hundred forty-three thousand, seven hundred two".