120202734638 has 32 divisors (see below), whose sum is σ = 208012432320. Its totient is φ = 51028081920.

The previous prime is 120202734629. The next prime is 120202734679. The reversal of 120202734638 is 836437202021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6480818 + ... + 6499338.

It is an arithmetic number, because the mean of its divisors is an integer number (6500388510).

Almost surely, 2^120202734638 is an apocalyptic number.

120202734638 is a deficient number, since it is larger than the sum of its proper divisors (87809697682).

120202734638 is a wasteful number, since it uses less digits than its factorization.

120202734638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22892.

The product of its (nonzero) digits is 96768, while the sum is 38.

Adding to 120202734638 its reverse (836437202021), we get a palindrome (956639936659).

The spelling of 120202734638 in words is "one hundred twenty billion, two hundred two million, seven hundred thirty-four thousand, six hundred thirty-eight".