1128298031949 has 16 divisors (see below), whose sum is σ = 1649753247744. Its totient is φ = 680236791600.

The previous prime is 1128298031941. The next prime is 1128298031957. The reversal of 1128298031949 is 9491308928211.

It is an interprime number because it is at equal distance from previous prime (1128298031941) and next prime (1128298031957).

It is not a de Polignac number, because 1128298031949 - 2³ = 1128298031941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128298031941) 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, 89498539 + ... + 89511144.

It is an arithmetic number, because the mean of its divisors is an integer number (103109577984).

Almost surely, 2^{1128298031949} is an apocalyptic number.

It is an amenable number.

1128298031949 is a deficient number, since it is larger than the sum of its proper divisors (521455215795).

1128298031949 is a wasteful number, since it uses less digits than its factorization.

1128298031949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179009888.

The product of its (nonzero) digits is 2239488, while the sum is 57.

The spelling of 1128298031949 in words is "one trillion, one hundred twenty-eight billion, two hundred ninety-eight million, thirty-one thousand, nine hundred forty-nine".