10042120401 has 4 divisors (see below), whose sum is σ = 13389493872. Its totient is φ = 6694746932.

The previous prime is 10042120399. The next prime is 10042120411. The reversal of 10042120401 is 10402124001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10042120401 - 2¹ = 10042120399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10042120411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673686731 + ... + 1673686736.

It is an arithmetic number, because the mean of its divisors is an integer number (3347373468).

Almost surely, 2^10042120401 is an apocalyptic number.

It is an amenable number.

10042120401 is a deficient number, since it is larger than the sum of its proper divisors (3347373471).

10042120401 is an equidigital number, since it uses as much as digits as its factorization.

10042120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347373470.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10042120401 its reverse (10402124001), we get a palindrome (20444244402).

The spelling of 10042120401 in words is "ten billion, forty-two million, one hundred twenty thousand, four hundred one".