120012231231311 has 4 divisors (see below), whose sum is σ = 120776640347592. Its totient is φ = 119247822115032.

The previous prime is 120012231231307. The next prime is 120012231231313. The reversal of 120012231231311 is 113132132210021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120012231231311 - 2² = 120012231231307 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 (120012231231313) 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, 382204557905 + ... + 382204558218.

It is an arithmetic number, because the mean of its divisors is an integer number (30194160086898).

Almost surely, 2^{120012231231311} is an apocalyptic number.

120012231231311 is a deficient number, since it is larger than the sum of its proper divisors (764409116281).

120012231231311 is an equidigital number, since it uses as much as digits as its factorization.

120012231231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764409116280.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 120012231231311 its reverse (113132132210021), we get a palindrome (233144363441332).

The spelling of 120012231231311 in words is "one hundred twenty trillion, twelve billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred eleven".