20040121034830 has 32 divisors (see below), whose sum is σ = 40536004025664. Its totient is φ = 7077714986496.

The previous prime is 20040121034809. The next prime is 20040121034831. The reversal of 20040121034830 is 3843012104002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040121034831) 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, 3351187819 + ... + 3351193798.

It is an arithmetic number, because the mean of its divisors is an integer number (1266750125802).

Almost surely, 2^{20040121034830} is an apocalyptic number.

20040121034830 is an abundant number, since it is smaller than the sum of its proper divisors (20495882990834).

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

20040121034830 is a wasteful number, since it uses less digits than its factorization.

20040121034830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702381660.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20040121034830 its reverse (3843012104002), we get a palindrome (23883133138832).

The spelling of 20040121034830 in words is "twenty trillion, forty billion, one hundred twenty-one million, thirty-four thousand, eight hundred thirty".