131123202 has 16 divisors (see below), whose sum is σ = 299710272. Its totient is φ = 37463760.

The previous prime is 131123183. The next prime is 131123203. The reversal of 131123202 is 202321131.

It is not an unprimeable number, because it can be changed into a prime (131123203) 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, 1560949 + ... + 1561032.

It is an arithmetic number, because the mean of its divisors is an integer number (18731892).

Almost surely, 2^131123202 is an apocalyptic number.

131123202 is an abundant number, since it is smaller than the sum of its proper divisors (168587070).

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

131123202 is a wasteful number, since it uses less digits than its factorization.

131123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121993.

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

The square root of 131123202 is about 11450.9039817824. The cubic root of 131123202 is about 508.0344723130.

Adding to 131123202 its reverse (202321131), we get a palindrome (333444333).

The spelling of 131123202 in words is "one hundred thirty-one million, one hundred twenty-three thousand, two hundred two".