131201142023420 has 48 divisors (see below), whose sum is σ = 314981420318208. Its totient is φ = 44969151627840.

The previous prime is 131201142023381. The next prime is 131201142023459. The reversal of 131201142023420 is 24320241102131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131201142023381) and next prime (131201142023459).

It is a self number, because there is not a number n which added to its sum of digits gives 131201142023420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146396102 + ... + 147289581.

It is an arithmetic number, because the mean of its divisors is an integer number (6562112923296).

Almost surely, 2^{131201142023420} is an apocalyptic number.

131201142023420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201142023420 is an abundant number, since it is smaller than the sum of its proper divisors (183780278294788).

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

131201142023420 is a wasteful number, since it uses less digits than its factorization.

131201142023420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293688890 (or 293688888 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 131201142023420 its reverse (24320241102131), we get a palindrome (155521383125551).

The spelling of 131201142023420 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred forty-two million, twenty-three thousand, four hundred twenty".