20312440121030 has 16 divisors (see below), whose sum is σ = 37077355489824. Its totient is φ = 8010539765760.

The previous prime is 20312440121003. The next prime is 20312440121041. The reversal of 20312440121030 is 3012104421302.

It is a junction number, because it is equal to n+sod(n) for n = 20312440120987 and 20312440121005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14304534587 + ... + 14304536006.

It is an arithmetic number, because the mean of its divisors is an integer number (2317334718114).

Almost surely, 2^{20312440121030} is an apocalyptic number.

20312440121030 is a deficient number, since it is larger than the sum of its proper divisors (16764915368794).

20312440121030 is a wasteful number, since it uses less digits than its factorization.

20312440121030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28609070671.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20312440121030 its reverse (3012104421302), we get a palindrome (23324544542332).

The spelling of 20312440121030 in words is "twenty trillion, three hundred twelve billion, four hundred forty million, one hundred twenty-one thousand, thirty".