1231310120102 has 8 divisors (see below), whose sum is σ = 1848056127456. Its totient is φ = 615291410952.

The previous prime is 1231310120077. The next prime is 1231310120107. The reversal of 1231310120102 is 2010210131321.

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

It is a super-2 number, since 2×1231310120102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231310120107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181820318 + ... + 181827089.

It is an arithmetic number, because the mean of its divisors is an integer number (231007015932).

Almost surely, 2^{1231310120102} is an apocalyptic number.

1231310120102 is a deficient number, since it is larger than the sum of its proper divisors (616746007354).

1231310120102 is a wasteful number, since it uses less digits than its factorization.

1231310120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363649102.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1231310120102 its reverse (2010210131321), we get a palindrome (3241520251423).

The spelling of 1231310120102 in words is "one trillion, two hundred thirty-one billion, three hundred ten million, one hundred twenty thousand, one hundred two".