1204402311 has 32 divisors (see below), whose sum is σ = 2080832000. Its totient is φ = 688224600.

The previous prime is 1204402259. The next prime is 1204402387. The reversal of 1204402311 is 1132044021.

1204402311 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 1204402311 - 2¹⁷ = 1204271239 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 (1204402391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55765 + ... + 74286.

It is an arithmetic number, because the mean of its divisors is an integer number (65026000).

Almost surely, 2^1204402311 is an apocalyptic number.

1204402311 is a deficient number, since it is larger than the sum of its proper divisors (876429689).

1204402311 is an equidigital number, since it uses as much as digits as its factorization.

1204402311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130081 (or 130061 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1204402311 is about 34704.4998667320. The cubic root of 1204402311 is about 1063.9564704029.

Adding to 1204402311 its reverse (1132044021), we get a palindrome (2336446332).

The spelling of 1204402311 in words is "one billion, two hundred four million, four hundred two thousand, three hundred eleven".