20120312377724 has 24 divisors (see below), whose sum is σ = 37920471518160. Its totient is φ = 9285949954944.

The previous prime is 20120312377721. The next prime is 20120312377729. The reversal of 20120312377724 is 42777321302102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120312377721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5848094 + ... + 8627909.

It is an arithmetic number, because the mean of its divisors is an integer number (1580019646590).

Almost surely, 2^{20120312377724} is an apocalyptic number.

It is an amenable number.

20120312377724 is a deficient number, since it is larger than the sum of its proper divisors (17800159140436).

20120312377724 is a wasteful number, since it uses less digits than its factorization.

20120312377724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14502749 (or 14502747 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

Adding to 20120312377724 its reverse (42777321302102), we get a palindrome (62897633679826).

The spelling of 20120312377724 in words is "twenty trillion, one hundred twenty billion, three hundred twelve million, three hundred seventy-seven thousand, seven hundred twenty-four".