31012020012315 has 16 divisors (see below), whose sum is σ = 49644928198656. Its totient is φ = 16531178613600.

The previous prime is 31012020012313. The next prime is 31012020012329. The reversal of 31012020012315 is 51321002021013.

It is not a de Polignac number, because 31012020012315 - 2¹ = 31012020012313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31012020012291 and 31012020012300.

It is not an unprimeable number, because it can be changed into a prime (31012020012313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535307131 + ... + 535365060.

It is an arithmetic number, because the mean of its divisors is an integer number (3102808012416).

Almost surely, 2^{31012020012315} is an apocalyptic number.

31012020012315 is a deficient number, since it is larger than the sum of its proper divisors (18632908186341).

31012020012315 is a wasteful number, since it uses less digits than its factorization.

31012020012315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070674130.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 31012020012315 its reverse (51321002021013), we get a palindrome (82333022033328).

The spelling of 31012020012315 in words is "thirty-one trillion, twelve billion, twenty million, twelve thousand, three hundred fifteen".