313155240023442 has 32 divisors (see below), whose sum is σ = 626613305760000. Its totient is φ = 104334610458960.

The previous prime is 313155240023299. The next prime is 313155240023447. The reversal of 313155240023442 is 244320042551313.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 313155240023442.

It is not an unprimeable number, because it can be changed into a prime (313155240023447) 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, 1246496613 + ... + 1246747815.

It is an arithmetic number, because the mean of its divisors is an integer number (19581665805000).

Almost surely, 2^{313155240023442} is an apocalyptic number.

313155240023442 is an abundant number, since it is smaller than the sum of its proper divisors (313458065736558).

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

313155240023442 is a wasteful number, since it uses less digits than its factorization.

313155240023442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350838.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 313155240023442 its reverse (244320042551313), we get a palindrome (557475282574755).

The spelling of 313155240023442 in words is "three hundred thirteen trillion, one hundred fifty-five billion, two hundred forty million, twenty-three thousand, four hundred forty-two".