1023400433504 has 12 divisors (see below), whose sum is σ = 2014819603524. Its totient is φ = 511700216736.

The previous prime is 1023400433477. The next prime is 1023400433513. The reversal of 1023400433504 is 4053340043201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15990631742 + ... + 15990631805.

It is an arithmetic number, because the mean of its divisors is an integer number (167901633627).

Almost surely, 2^{1023400433504} is an apocalyptic number.

It is an amenable number.

1023400433504 is a deficient number, since it is larger than the sum of its proper divisors (991419170020).

1023400433504 is an equidigital number, since it uses as much as digits as its factorization.

1023400433504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31981263557 (or 31981263549 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 1023400433504 its reverse (4053340043201), we get a palindrome (5076740476705).

The spelling of 1023400433504 in words is "one trillion, twenty-three billion, four hundred million, four hundred thirty-three thousand, five hundred four".