1312012202310 has 128 divisors (see below), whose sum is σ = 3551780275200. Its totient is φ = 348893264736.

The previous prime is 1312012202309. The next prime is 1312012202311. The reversal of 1312012202310 is 132022102131.

1312012202310 is a `hidden beast` number, since 1 + 312 + 0 + 122 + 0 + 231 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1312012202309) and next prime (1312012202311).

It is a super-2 number, since 2×1312012202310² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312012202311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7767777 + ... + 7934883.

It is an arithmetic number, because the mean of its divisors is an integer number (27748283400).

Almost surely, 2^{1312012202310} is an apocalyptic number.

1312012202310 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 1312012202310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775890137600).

1312012202310 is an abundant number, since it is smaller than the sum of its proper divisors (2239768072890).

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

1312012202310 is an equidigital number, since it uses as much as digits as its factorization.

1312012202310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167494 (or 167476 counting only the distinct ones).

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

Adding to 1312012202310 its reverse (132022102131), we get a palindrome (1444034304441).

The spelling of 1312012202310 in words is "one trillion, three hundred twelve billion, twelve million, two hundred two thousand, three hundred ten".