31456136130046 has 16 divisors (see below), whose sum is σ = 47199924828000. Its totient is φ = 15722828621568.

The previous prime is 31456136129953. The next prime is 31456136130049. The reversal of 31456136130046 is 64003163165413.

It is a junction number, because it is equal to n+sod(n) for n = 31456136129984 and 31456136130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31456136130049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84900031 + ... + 85269733.

It is an arithmetic number, because the mean of its divisors is an integer number (2949995301750).

Almost surely, 2^{31456136130046} is an apocalyptic number.

31456136130046 is a deficient number, since it is larger than the sum of its proper divisors (15743788697954).

31456136130046 is a wasteful number, since it uses less digits than its factorization.

31456136130046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383763.

The product of its (nonzero) digits is 466560, while the sum is 43.

Adding to 31456136130046 its reverse (64003163165413), we get a palindrome (95459299295459).

The spelling of 31456136130046 in words is "thirty-one trillion, four hundred fifty-six billion, one hundred thirty-six million, one hundred thirty thousand, forty-six".