31306147342 has 4 divisors (see below), whose sum is σ = 46959221016. Its totient is φ = 15653073670.

The previous prime is 31306147333. The next prime is 31306147357. The reversal of 31306147342 is 24374160313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24374160313 = 307 ⋅79394659.

It is a super-2 number, since 2×31306147342² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31306147298 and 31306147307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7826536834 + ... + 7826536837.

It is an arithmetic number, because the mean of its divisors is an integer number (11739805254).

Almost surely, 2^31306147342 is an apocalyptic number.

31306147342 is a deficient number, since it is larger than the sum of its proper divisors (15653073674).

31306147342 is a wasteful number, since it uses less digits than its factorization.

31306147342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15653073673.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 31306147342 in words is "thirty-one billion, three hundred six million, one hundred forty-seven thousand, three hundred forty-two".