1213020011310 has 128 divisors (see below), whose sum is σ = 3152195066880. Its totient is φ = 297700614144.

The previous prime is 1213020011309. The next prime is 1213020011351. The reversal of 1213020011310 is 131100203121.

It is a happy number.

It is a super-2 number, since 2×1213020011310² (a number of 25 digits) contains 22 as substring.

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 1213020011310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13600782 + ... + 13689678.

It is an arithmetic number, because the mean of its divisors is an integer number (24626523960).

Almost surely, 2^{1213020011310} is an apocalyptic number.

1213020011310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213020011310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1576097533440).

1213020011310 is an abundant number, since it is smaller than the sum of its proper divisors (1939175055570).

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

1213020011310 is a wasteful number, since it uses less digits than its factorization.

1213020011310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89610.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1213020011310 its reverse (131100203121), we get a palindrome (1344120214431).

The spelling of 1213020011310 in words is "one trillion, two hundred thirteen billion, twenty million, eleven thousand, three hundred ten".