78031012013311 has 16 divisors (see below), whose sum is σ = 91109877418048. Its totient is φ = 65446403328000.

The previous prime is 78031012013309. The next prime is 78031012013323. The reversal of 78031012013311 is 11331021013087.

It is a cyclic number.

It is not a de Polignac number, because 78031012013311 - 2¹ = 78031012013309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78031012013351) 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, 473343540 + ... + 473508361.

It is an arithmetic number, because the mean of its divisors is an integer number (5694367338628).

Almost surely, 2^{78031012013311} is an apocalyptic number.

78031012013311 is a deficient number, since it is larger than the sum of its proper divisors (13078865404737).

78031012013311 is a wasteful number, since it uses less digits than its factorization.

78031012013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946852162.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 78031012013311 its reverse (11331021013087), we get a palindrome (89362033026398).

The spelling of 78031012013311 in words is "seventy-eight trillion, thirty-one billion, twelve million, thirteen thousand, three hundred eleven".