1023123400432 has 40 divisors (see below), whose sum is σ = 2278004080352. Its totient is φ = 436058899200.

The previous prime is 1023123400423. The next prime is 1023123400451. The reversal of 1023123400432 is 2340043213201.

It is a junction number, because it is equal to n+sod(n) for n = 1023123400397 and 1023123400406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25214619 + ... + 25255162.

Almost surely, 2^{1023123400432} is an apocalyptic number.

It is an amenable number.

1023123400432 is an abundant number, since it is smaller than the sum of its proper divisors (1254880679920).

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

1023123400432 is a wasteful number, since it uses less digits than its factorization.

1023123400432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50469977 (or 50469971 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1023123400432 its reverse (2340043213201), we get a palindrome (3363166613633).

The spelling of 1023123400432 in words is "one trillion, twenty-three billion, one hundred twenty-three million, four hundred thousand, four hundred thirty-two".