131011021230 has 16 divisors (see below), whose sum is σ = 314426451024. Its totient is φ = 34936272320.

The previous prime is 131011021223. The next prime is 131011021231. The reversal of 131011021230 is 32120110131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183516991 + ... + 2183517050.

It is an arithmetic number, because the mean of its divisors is an integer number (19651653189).

Almost surely, 2^131011021230 is an apocalyptic number.

131011021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131011021230 is an abundant number, since it is smaller than the sum of its proper divisors (183415429794).

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

131011021230 is a wasteful number, since it uses less digits than its factorization.

131011021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367034051.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131011021230 its reverse (32120110131), we get a palindrome (163131131361).

The spelling of 131011021230 in words is "one hundred thirty-one billion, eleven million, twenty-one thousand, two hundred thirty".