2130123312312 has 16 divisors (see below), whose sum is σ = 5325308280840. Its totient is φ = 710041104096.

The previous prime is 2130123312283. The next prime is 2130123312349. The reversal of 2130123312312 is 2132133210312.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 88755138013 = 2130123312312 / (2 + 1 + 3 + 0 + 1 + 2 + 3 + 3 + 1 + 2 + 3 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44377568983 + ... + 44377569030.

Almost surely, 2^{2130123312312} is an apocalyptic number.

It is an amenable number.

2130123312312 is an abundant number, since it is smaller than the sum of its proper divisors (3195184968528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130123312312 is a wasteful number, since it uses less digits than its factorization.

2130123312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88755138022 (or 88755138018 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2130123312312 its reverse (2132133210312), we get a palindrome (4262256522624).

The spelling of 2130123312312 in words is "two trillion, one hundred thirty billion, one hundred twenty-three million, three hundred twelve thousand, three hundred twelve".