742104103021 has 4 divisors (see below), whose sum is σ = 747442981600. Its totient is φ = 736765224444.

The previous prime is 742104103003. The next prime is 742104103031. The reversal of 742104103021 is 120301401247.

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 742104103021 - 2³⁷ = 604665149549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742104103001) 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, 2669439081 + ... + 2669439358.

It is an arithmetic number, because the mean of its divisors is an integer number (186860745400).

Almost surely, 2^742104103021 is an apocalyptic number.

It is an amenable number.

742104103021 is a deficient number, since it is larger than the sum of its proper divisors (5338878579).

742104103021 is a wasteful number, since it uses less digits than its factorization.

742104103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338878578.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 742104103021 its reverse (120301401247), we get a palindrome (862405504268).

The spelling of 742104103021 in words is "seven hundred forty-two billion, one hundred four million, one hundred three thousand, twenty-one".