20040121033379 has 2 divisors, whose sum is σ = 20040121033380. Its totient is φ = 20040121033378.

The previous prime is 20040121033349. The next prime is 20040121033393. The reversal of 20040121033379 is 97333012104002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20040121033379 - 2²⁰ = 20040119984803 is a prime.

It is not a weakly prime, because it can be changed into another prime (20040121033349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020060516689 + 10020060516690.

It is an arithmetic number, because the mean of its divisors is an integer number (10020060516690).

Almost surely, 2^{20040121033379} is an apocalyptic number.

20040121033379 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040121033379 is an equidigital number, since it uses as much as digits as its factorization.

20040121033379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 20040121033379 in words is "twenty trillion, forty billion, one hundred twenty-one million, thirty-three thousand, three hundred seventy-nine".