1231435425052 has 12 divisors (see below), whose sum is σ = 2462870850160. Its totient is φ = 527758039296.

The previous prime is 1231435424971. The next prime is 1231435425053. The reversal of 1231435425052 is 2505245341321.

It is a happy number.

1231435425052 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231435425053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21989918277 + ... + 21989918332.

Almost surely, 2^{1231435425052} is an apocalyptic number.

It is an amenable number.

1231435425052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1231435425052 is a wasteful number, since it uses less digits than its factorization.

1231435425052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43979836620 (or 43979836618 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 1231435425052 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-five million, four hundred twenty-five thousand, fifty-two".