131142023430 has 64 divisors (see below), whose sum is σ = 344259936000. Its totient is φ = 31708091520.

The previous prime is 131142023401. The next prime is 131142023447. The reversal of 131142023430 is 34320241131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131142023430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399205 + ... + 649344.

It is an arithmetic number, because the mean of its divisors is an integer number (5379061500).

Almost surely, 2^131142023430 is an apocalyptic number.

131142023430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131142023430 is an abundant number, since it is smaller than the sum of its proper divisors (213117912570).

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

131142023430 is a wasteful number, since it uses less digits than its factorization.

131142023430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048949.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131142023430 its reverse (34320241131), we get a palindrome (165462264561).

The spelling of 131142023430 in words is "one hundred thirty-one billion, one hundred forty-two million, twenty-three thousand, four hundred thirty".