1310020123200 has 84 divisors (see below), whose sum is σ = 4297957703280. Its totient is φ = 349338698240.

The previous prime is 1310020123183. The next prime is 1310020123211. The reversal of 1310020123200 is 23210200131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1310020123200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136455630 + ... + 136465229.

Almost surely, 2^{1310020123200} is an apocalyptic number.

1310020123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310020123200 is an abundant number, since it is smaller than the sum of its proper divisors (2987937580080).

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

1310020123200 is a wasteful number, since it uses less digits than its factorization.

1310020123200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272920884 (or 272920869 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1310020123200 its reverse (23210200131), we get a palindrome (1333230323331).

The spelling of 1310020123200 in words is "one trillion, three hundred ten billion, twenty million, one hundred twenty-three thousand, two hundred".