10120121231 has 8 divisors (see below), whose sum is σ = 11042112000. Its totient is φ = 9198460440.

The previous prime is 10120121227. The next prime is 10120121243. The reversal of 10120121231 is 13212102101.

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

It is a cyclic number.

It is not a de Polignac number, because 10120121231 - 2² = 10120121227 is a prime.

It is a super-2 number, since 2×10120121231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120127231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16031 + ... + 143168.

It is an arithmetic number, because the mean of its divisors is an integer number (1380264000).

Almost surely, 2^10120121231 is an apocalyptic number.

10120121231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10120121231 is a deficient number, since it is larger than the sum of its proper divisors (921990769).

10120121231 is a wasteful number, since it uses less digits than its factorization.

10120121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164989.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10120121231 its reverse (13212102101), we get a palindrome (23332223332).

The spelling of 10120121231 in words is "ten billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-one".