10120021321 has 8 divisors (see below), whose sum is σ = 10598151744. Its totient is φ = 9645068400.

The previous prime is 10120021313. The next prime is 10120021411. The reversal of 10120021321 is 12312002101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10120021321 - 2³ = 10120021313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120021721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787855 + ... + 800596.

It is an arithmetic number, because the mean of its divisors is an integer number (1324768968).

Almost surely, 2^10120021321 is an apocalyptic number.

It is an amenable number.

10120021321 is a deficient number, since it is larger than the sum of its proper divisors (478130423).

10120021321 is a wasteful number, since it uses less digits than its factorization.

10120021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588751.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10120021321 its reverse (12312002101), we get a palindrome (22432023422).

The spelling of 10120021321 in words is "ten billion, one hundred twenty million, twenty-one thousand, three hundred twenty-one".