1231330400022 has 16 divisors (see below), whose sum is σ = 2462679241920. Its totient is φ = 410440393032.

The previous prime is 1231330399991. The next prime is 1231330400033. The reversal of 1231330400022 is 2200040331321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191893 + ... + 1580975.

It is an arithmetic number, because the mean of its divisors is an integer number (153917452620).

Almost surely, 2^{1231330400022} is an apocalyptic number.

1231330400022 is an abundant number, since it is smaller than the sum of its proper divisors (1231348841898).

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

1231330400022 is a wasteful number, since it uses less digits than its factorization.

1231330400022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536827.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1231330400022 its reverse (2200040331321), we get a palindrome (3431370731343).

The spelling of 1231330400022 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, four hundred thousand, twenty-two".