10123011321 has 16 divisors (see below), whose sum is σ = 14112921600. Its totient is φ = 6442084880.

The previous prime is 10123011319. The next prime is 10123011329. The reversal of 10123011321 is 12311032101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10123011321 - 2¹ = 10123011319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10123011321.

It is not an unprimeable number, because it can be changed into a prime (10123011329) 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, 115521 + ... + 183278.

It is an arithmetic number, because the mean of its divisors is an integer number (882057600).

Almost surely, 2^10123011321 is an apocalyptic number.

It is an amenable number.

10123011321 is a deficient number, since it is larger than the sum of its proper divisors (3989910279).

10123011321 is a wasteful number, since it uses less digits than its factorization.

10123011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299316.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10123011321 its reverse (12311032101), we get a palindrome (22434043422).

The spelling of 10123011321 in words is "ten billion, one hundred twenty-three million, eleven thousand, three hundred twenty-one".