1403312400423 has 8 divisors (see below), whose sum is σ = 2078981334000. Its totient is φ = 935541600264.

The previous prime is 1403312400383. The next prime is 1403312400431. The reversal of 1403312400423 is 3240042133041.

It is not a de Polignac number, because 1403312400423 - 2²⁹ = 1402775529511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 51974533349 = 1403312400423 / (1 + 4 + 0 + 3 + 3 + 1 + 2 + 4 + 0 + 0 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403312400223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25987266648 + ... + 25987266701.

It is an arithmetic number, because the mean of its divisors is an integer number (259872666750).

Almost surely, 2^{1403312400423} is an apocalyptic number.

1403312400423 is a deficient number, since it is larger than the sum of its proper divisors (675668933577).

1403312400423 is an equidigital number, since it uses as much as digits as its factorization.

1403312400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51974533358 (or 51974533352 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1403312400423 its reverse (3240042133041), we get a palindrome (4643354533464).

The spelling of 1403312400423 in words is "one trillion, four hundred three billion, three hundred twelve million, four hundred thousand, four hundred twenty-three".