31340172162 has 32 divisors (see below), whose sum is σ = 67652323200. Its totient is φ = 9621642240.

The previous prime is 31340172137. The next prime is 31340172169. The reversal of 31340172162 is 26127104313.

It is a happy number.

It is a super-2 number, since 2×31340172162² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31340172169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412414 + ... + 482457.

It is an arithmetic number, because the mean of its divisors is an integer number (2114135100).

Almost surely, 2^31340172162 is an apocalyptic number.

31340172162 is an abundant number, since it is smaller than the sum of its proper divisors (36312151038).

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

31340172162 is a wasteful number, since it uses less digits than its factorization.

31340172162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895338.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 31340172162 its reverse (26127104313), we get a palindrome (57467276475).

The spelling of 31340172162 in words is "thirty-one billion, three hundred forty million, one hundred seventy-two thousand, one hundred sixty-two".