1201302312320 has 64 divisors (see below), whose sum is σ = 3132941844240. Its totient is φ = 436837201920.

The previous prime is 1201302312313. The next prime is 1201302312421. The reversal of 1201302312320 is 232132031021.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1201302312292 and 1201302312301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85312727 + ... + 85326806.

Almost surely, 2^{1201302312320} is an apocalyptic number.

1201302312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201302312320 is an abundant number, since it is smaller than the sum of its proper divisors (1931639531920).

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

1201302312320 is a wasteful number, since it uses less digits than its factorization.

1201302312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170639563 (or 170639551 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1201302312320 its reverse (232132031021), we get a palindrome (1433434343341).

The spelling of 1201302312320 in words is "one trillion, two hundred one billion, three hundred two million, three hundred twelve thousand, three hundred twenty".