78031012013310 has 128 divisors (see below), whose sum is σ = 192982332201984. Its totient is φ = 20177860285440.

The previous prime is 78031012013309. The next prime is 78031012013323. The reversal of 78031012013310 is 1331021013087.

It is a super-2 number, since 2×78031012013310² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2637326337 + ... + 2637355923.

It is an arithmetic number, because the mean of its divisors is an integer number (1507674470328).

Almost surely, 2^{78031012013310} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78031012013310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96491166100992).

78031012013310 is an abundant number, since it is smaller than the sum of its proper divisors (114951320188674).

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

78031012013310 is a wasteful number, since it uses less digits than its factorization.

78031012013310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37538.

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 78031012013310 its reverse (1331021013087), we get a palindrome (79362033026397).

The spelling of 78031012013310 in words is "seventy-eight trillion, thirty-one billion, twelve million, thirteen thousand, three hundred ten".