1213020112320 has 336 divisors, whose sum is σ = 4376237493888. Its totient is φ = 308031897600.

The previous prime is 1213020112319. The next prime is 1213020112331. The reversal of 1213020112320 is 232110203121.

1213020112320 is a `hidden beast` number, since 1 + 2 + 130 + 201 + 12 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1213020112293 and 1213020112302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4887220 + ... + 5129420.

Almost surely, 2^{1213020112320} is an apocalyptic number.

1213020112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213020112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188118746944).

1213020112320 is an abundant number, since it is smaller than the sum of its proper divisors (3163217381568).

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

1213020112320 is a wasteful number, since it uses less digits than its factorization.

1213020112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242308 (or 242295 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1213020112320 its reverse (232110203121), we get a palindrome (1445130315441).

The spelling of 1213020112320 in words is "one trillion, two hundred thirteen billion, twenty million, one hundred twelve thousand, three hundred twenty".