1213423125432 has 32 divisors (see below), whose sum is σ = 3466923216000. Its totient is φ = 346692321504.

The previous prime is 1213423125367. The next prime is 1213423125433. The reversal of 1213423125432 is 2345213243121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213423125393 and 1213423125402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213423125433) by changing a digit.

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, 3611378182 + ... + 3611378517.

It is an arithmetic number, because the mean of its divisors is an integer number (108341350500).

Almost surely, 2^{1213423125432} is an apocalyptic number.

1213423125432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213423125432 is an abundant number, since it is smaller than the sum of its proper divisors (2253500090568).

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

1213423125432 is a wasteful number, since it uses less digits than its factorization.

1213423125432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222756715 (or 7222756711 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

Adding to 1213423125432 its reverse (2345213243121), we get a palindrome (3558636368553).

The spelling of 1213423125432 in words is "one trillion, two hundred thirteen billion, four hundred twenty-three million, one hundred twenty-five thousand, four hundred thirty-two".