120231212310111 has 16 divisors (see below), whose sum is σ = 183657411296000. Its totient is φ = 68535570547008.

The previous prime is 120231212310059. The next prime is 120231212310119. The reversal of 120231212310111 is 111013212132021.

It is not a de Polignac number, because 120231212310111 - 2²⁶ = 120231145201247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231212310119) 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, 6999130561 + ... + 6999147738.

It is an arithmetic number, because the mean of its divisors is an integer number (11478588206000).

Almost surely, 2^{120231212310111} is an apocalyptic number.

120231212310111 is a deficient number, since it is larger than the sum of its proper divisors (63426198985889).

120231212310111 is a wasteful number, since it uses less digits than its factorization.

120231212310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13998278718.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 120231212310111 its reverse (111013212132021), we get a palindrome (231244424442132).

The spelling of 120231212310111 in words is "one hundred twenty trillion, two hundred thirty-one billion, two hundred twelve million, three hundred ten thousand, one hundred eleven".