1231130202 has 32 divisors (see below), whose sum is σ = 2527096320. Its totient is φ = 399710640.

The previous prime is 1231130189. The next prime is 1231130207. The reversal of 1231130202 is 2020311321.

It is not an unprimeable number, because it can be changed into a prime (1231130207) 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, 17949 + ... + 52767.

It is an arithmetic number, because the mean of its divisors is an integer number (78971760).

Almost surely, 2^1231130202 is an apocalyptic number.

1231130202 is an abundant number, since it is smaller than the sum of its proper divisors (1295966118).

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

1231130202 is a wasteful number, since it uses less digits than its factorization.

1231130202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34978.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1231130202 is about 35087.4650267015. The cubic root of 1231130202 is about 1071.7693386223.

Adding to 1231130202 its reverse (2020311321), we get a palindrome (3251441523).

The spelling of 1231130202 in words is "one billion, two hundred thirty-one million, one hundred thirty thousand, two hundred two".