1198402311 has 16 divisors (see below), whose sum is σ = 1618450400. Its totient is φ = 788686848.

The previous prime is 1198402307. The next prime is 1198402319. The reversal of 1198402311 is 1132048911.

1198402311 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1198402311 - 2² = 1198402307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198402319) 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, 113985 + ... + 124053.

It is an arithmetic number, because the mean of its divisors is an integer number (101153150).

Almost surely, 2^1198402311 is an apocalyptic number.

1198402311 is a deficient number, since it is larger than the sum of its proper divisors (420048089).

1198402311 is a wasteful number, since it uses less digits than its factorization.

1198402311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10578.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1198402311 is about 34617.9478161257. The cubic root of 1198402311 is about 1062.1867491961.

The spelling of 1198402311 in words is "one billion, one hundred ninety-eight million, four hundred two thousand, three hundred eleven".