1213031121132 has 48 divisors (see below), whose sum is σ = 2884468527360. Its totient is φ = 396623967168.

The previous prime is 1213031121131. The next prime is 1213031121157. The reversal of 1213031121132 is 2311211303121.

It is a super-2 number, since 2×1213031121132² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213031121099 and 1213031121108.

It is not an unprimeable number, because it can be changed into a prime (1213031121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2597419 + ... + 3028637.

It is an arithmetic number, because the mean of its divisors is an integer number (60093094320).

Almost surely, 2^{1213031121132} is an apocalyptic number.

1213031121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213031121132 is an abundant number, since it is smaller than the sum of its proper divisors (1671437406228).

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

1213031121132 is a wasteful number, since it uses less digits than its factorization.

1213031121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435702 (or 435700 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1213031121132 its reverse (2311211303121), we get a palindrome (3524242424253).

The spelling of 1213031121132 in words is "one trillion, two hundred thirteen billion, thirty-one million, one hundred twenty-one thousand, one hundred thirty-two".