102403037414491 has 4 divisors (see below), whose sum is σ = 111712404452184. Its totient is φ = 93093670376800.

The previous prime is 102403037414479. The next prime is 102403037414551. The reversal of 102403037414491 is 194414730304201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102403037414491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102403037414441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654683518830 + ... + 4654683518851.

It is an arithmetic number, because the mean of its divisors is an integer number (27928101113046).

Almost surely, 2^{102403037414491} is an apocalyptic number.

102403037414491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102403037414491 is a deficient number, since it is larger than the sum of its proper divisors (9309367037693).

102403037414491 is an equidigital number, since it uses as much as digits as its factorization.

102403037414491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309367037692.

The product of its (nonzero) digits is 290304, while the sum is 43.

Adding to 102403037414491 its reverse (194414730304201), we get a palindrome (296817767718692).

The spelling of 102403037414491 in words is "one hundred two trillion, four hundred three billion, thirty-seven million, four hundred fourteen thousand, four hundred ninety-one".