1020120232311 has 12 divisors (see below), whose sum is σ = 1498481697960. Its totient is φ = 668553372240.

The previous prime is 1020120232291. The next prime is 1020120232331. The reversal of 1020120232311 is 1132320210201.

1020120232311 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 120 + 232 + 311 = 666.

It is an interprime number because it is at equal distance from previous prime (1020120232291) and next prime (1020120232331).

It is not a de Polignac number, because 1020120232311 - 2⁶ = 1020120232247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120232331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 960564660 + ... + 960565721.

It is an arithmetic number, because the mean of its divisors is an integer number (124873474830).

Almost surely, 2^{1020120232311} is an apocalyptic number.

1020120232311 is a deficient number, since it is larger than the sum of its proper divisors (478361465649).

1020120232311 is a wasteful number, since it uses less digits than its factorization.

1020120232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921130446 (or 1921130443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1020120232311 its reverse (1132320210201), we get a palindrome (2152440442512).

The spelling of 1020120232311 in words is "one trillion, twenty billion, one hundred twenty million, two hundred thirty-two thousand, three hundred eleven".