30031513917942 has 64 divisors (see below), whose sum is σ = 62641540988928. Its totient is φ = 9587944464000.

The previous prime is 30031513917883. The next prime is 30031513917947. The reversal of 30031513917942 is 24971931513003.

It is a junction number, because it is equal to n+sod(n) for n = 30031513917891 and 30031513917900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031513917947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4853092 + ... + 9144152.

It is an arithmetic number, because the mean of its divisors is an integer number (978774077952).

Almost surely, 2^{30031513917942} is an apocalyptic number.

30031513917942 is an abundant number, since it is smaller than the sum of its proper divisors (32610027070986).

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

30031513917942 is a wasteful number, since it uses less digits than its factorization.

30031513917942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291485.

The product of its (nonzero) digits is 612360, while the sum is 48.

The spelling of 30031513917942 in words is "thirty trillion, thirty-one billion, five hundred thirteen million, nine hundred seventeen thousand, nine hundred forty-two".