1231442453202 has 16 divisors (see below), whose sum is σ = 2652337591680. Its totient is φ = 378905370192.

The previous prime is 1231442453191. The next prime is 1231442453209. The reversal of 1231442453202 is 2023542441321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1231442453209) 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, 7893861802 + ... + 7893861957.

It is an arithmetic number, because the mean of its divisors is an integer number (165771099480).

Almost surely, 2^{1231442453202} is an apocalyptic number.

1231442453202 is an abundant number, since it is smaller than the sum of its proper divisors (1420895138478).

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

1231442453202 is a wasteful number, since it uses less digits than its factorization.

1231442453202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15787723777.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 1231442453202 its reverse (2023542441321), we get a palindrome (3254984894523).

The spelling of 1231442453202 in words is "one trillion, two hundred thirty-one billion, four hundred forty-two million, four hundred fifty-three thousand, two hundred two".