1200102131321 has 4 divisors (see below), whose sum is σ = 1202835849600. Its totient is φ = 1197368413044.

The previous prime is 1200102131317. The next prime is 1200102131341. The reversal of 1200102131321 is 1231312010021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1200102131321 - 2² = 1200102131317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200102131321.

It is not an unprimeable number, because it can be changed into a prime (1200102131341) 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, 1366858481 + ... + 1366859358.

It is an arithmetic number, because the mean of its divisors is an integer number (300708962400).

Almost surely, 2^{1200102131321} is an apocalyptic number.

It is an amenable number.

1200102131321 is a deficient number, since it is larger than the sum of its proper divisors (2733718279).

1200102131321 is an equidigital number, since it uses as much as digits as its factorization.

1200102131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733718278.

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

Adding to 1200102131321 its reverse (1231312010021), we get a palindrome (2431414141342).

The spelling of 1200102131321 in words is "one trillion, two hundred billion, one hundred two million, one hundred thirty-one thousand, three hundred twenty-one".