1231432100045 has 32 divisors (see below), whose sum is σ = 1729350332160. Its totient is φ = 824174507520.

The previous prime is 1231432099957. The next prime is 1231432100051. The reversal of 1231432100045 is 5400012341321.

It is a happy number.

It is not a de Polignac number, because 1231432100045 - 2⁸ = 1231432099789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231432099987 and 1231432100023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1782161 + ... + 2374649.

It is an arithmetic number, because the mean of its divisors is an integer number (54042197880).

Almost surely, 2^{1231432100045} is an apocalyptic number.

It is an amenable number.

1231432100045 is a deficient number, since it is larger than the sum of its proper divisors (497918232115).

1231432100045 is a wasteful number, since it uses less digits than its factorization.

1231432100045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593925.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1231432100045 its reverse (5400012341321), we get a palindrome (6631444441366).

The spelling of 1231432100045 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-two million, one hundred thousand, forty-five".