1129423263398 has 32 divisors (see below), whose sum is σ = 1709334208800. Its totient is φ = 559663776000.

The previous prime is 1129423263391. The next prime is 1129423263421. The reversal of 1129423263398 is 8933623249211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129423263391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491693786 + ... + 491696082.

It is an arithmetic number, because the mean of its divisors is an integer number (53416694025).

Almost surely, 2^{1129423263398} is an apocalyptic number.

1129423263398 is a deficient number, since it is larger than the sum of its proper divisors (579910945402).

1129423263398 is a wasteful number, since it uses less digits than its factorization.

1129423263398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432.

The product of its digits is 3359232, while the sum is 53.

The spelling of 1129423263398 in words is "one trillion, one hundred twenty-nine billion, four hundred twenty-three million, two hundred sixty-three thousand, three hundred ninety-eight".