1013121330312 has 128 divisors (see below), whose sum is σ = 3201547910400. Its totient is φ = 259975277568.

The previous prime is 1013121330271. The next prime is 1013121330313. The reversal of 1013121330312 is 2130331213101.

It is a happy number.

It is a super-2 number, since 2×1013121330312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1013121330313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6187887 + ... + 6349502.

It is an arithmetic number, because the mean of its divisors is an integer number (25012093050).

Almost surely, 2^{1013121330312} is an apocalyptic number.

1013121330312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1013121330312 is an abundant number, since it is smaller than the sum of its proper divisors (2188426580088).

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

1013121330312 is a wasteful number, since it uses less digits than its factorization.

1013121330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12537455 (or 12537451 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1013121330312 its reverse (2130331213101), we get a palindrome (3143452543413).

The spelling of 1013121330312 in words is "one trillion, thirteen billion, one hundred twenty-one million, three hundred thirty thousand, three hundred twelve".