1121404863588 has 24 divisors (see below), whose sum is σ = 2616766077408. Its totient is φ = 373779517056.

The previous prime is 1121404863563. The next prime is 1121404863613. The reversal of 1121404863588 is 8853684041211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121404863563) and next prime (1121404863613).

It is a self number, because there is not a number n which added to its sum of digits gives 1121404863588.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550981 + ... + 2958092.

It is an arithmetic number, because the mean of its divisors is an integer number (109031919892).

Almost surely, 2^{1121404863588} is an apocalyptic number.

It is an amenable number.

1121404863588 is an abundant number, since it is smaller than the sum of its proper divisors (1495361213820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121404863588 is a wasteful number, since it uses less digits than its factorization.

1121404863588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526043 (or 5526041 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 1121404863588 in words is "one trillion, one hundred twenty-one billion, four hundred four million, eight hundred sixty-three thousand, five hundred eighty-eight".