1121903323438 has 4 divisors (see below), whose sum is σ = 1682854985160. Its totient is φ = 560951661718.

The previous prime is 1121903323433. The next prime is 1121903323447. The reversal of 1121903323438 is 8343233091211.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1121903323438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121903323433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280475830858 + ... + 280475830861.

It is an arithmetic number, because the mean of its divisors is an integer number (420713746290).

Almost surely, 2^{1121903323438} is an apocalyptic number.

1121903323438 is a deficient number, since it is larger than the sum of its proper divisors (560951661722).

1121903323438 is an equidigital number, since it uses as much as digits as its factorization.

1121903323438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560951661721.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 1121903323438 in words is "one trillion, one hundred twenty-one billion, nine hundred three million, three hundred twenty-three thousand, four hundred thirty-eight".