1231212030132 has 48 divisors (see below), whose sum is σ = 3283329254912. Its totient is φ = 351764454240.

The previous prime is 1231212029981. The next prime is 1231212030157. The reversal of 1231212030132 is 2310302121321.

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

It is a junction number, because it is equal to n+sod(n) for n = 1231212030099 and 1231212030108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2903763 + ... + 3300645.

Almost surely, 2^{1231212030132} is an apocalyptic number.

1231212030132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231212030132 is an abundant number, since it is smaller than the sum of its proper divisors (2052117224780).

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

1231212030132 is a wasteful number, since it uses less digits than its factorization.

1231212030132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433828 (or 433826 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1231212030132 its reverse (2310302121321), we get a palindrome (3541514151453).

The spelling of 1231212030132 in words is "one trillion, two hundred thirty-one billion, two hundred twelve million, thirty thousand, one hundred thirty-two".