1298267830423 has 4 divisors (see below), whose sum is σ = 1340147437888. Its totient is φ = 1256388222960.

The previous prime is 1298267830411. The next prime is 1298267830427. The reversal of 1298267830423 is 3240387628921.

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-1298267830423 is a prime.

It is a super-2 number, since 2×1298267830423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298267830427) 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, 20939803686 + ... + 20939803747.

It is an arithmetic number, because the mean of its divisors is an integer number (335036859472).

Almost surely, 2^{1298267830423} is an apocalyptic number.

1298267830423 is a deficient number, since it is larger than the sum of its proper divisors (41879607465).

1298267830423 is an equidigital number, since it uses as much as digits as its factorization.

1298267830423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41879607464.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 1298267830423 in words is "one trillion, two hundred ninety-eight billion, two hundred sixty-seven million, eight hundred thirty thousand, four hundred twenty-three".