1231202098 has 16 divisors (see below), whose sum is σ = 2202399360. Its totient is φ = 504716256.

The previous prime is 1231202041. The next prime is 1231202099. The reversal of 1231202098 is 8902021321.

It is a super-2 number, since 2×1231202098² = 3031717212239203208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231202099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911483 + ... + 1912126.

It is an arithmetic number, because the mean of its divisors is an integer number (137649960).

Almost surely, 2^1231202098 is an apocalyptic number.

1231202098 is a deficient number, since it is larger than the sum of its proper divisors (971197262).

1231202098 is a wasteful number, since it uses less digits than its factorization.

1231202098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823641.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1231202098 is about 35088.4895371687. The cubic root of 1231202098 is about 1071.7902014112.

The spelling of 1231202098 in words is "one billion, two hundred thirty-one million, two hundred two thousand, ninety-eight".