1231354532532 has 24 divisors (see below), whose sum is σ = 2873325162400. Its totient is φ = 410427998496.

The previous prime is 1231354532531. The next prime is 1231354532533. The reversal of 1231354532532 is 2352354531321.

It is an interprime number because it is at equal distance from previous prime (1231354532531) and next prime (1231354532533).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231354532531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720182 + ... + 3140397.

Almost surely, 2^{1231354532532} is an apocalyptic number.

1231354532532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231354532532 is an abundant number, since it is smaller than the sum of its proper divisors (1641970629868).

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

1231354532532 is a wasteful number, since it uses less digits than its factorization.

1231354532532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878095 (or 5878093 counting only the distinct ones).

The product of its digits is 324000, while the sum is 39.

The spelling of 1231354532532 in words is "one trillion, two hundred thirty-one billion, three hundred fifty-four million, five hundred thirty-two thousand, five hundred thirty-two".