20130440423131 has 8 divisors (see below), whose sum is σ = 20824648578000. Its totient is φ = 19436235937440.

The previous prime is 20130440423129. The next prime is 20130440423147. The reversal of 20130440423131 is 13132404403102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20130440423131 - 2¹ = 20130440423129 is a prime.

It is a super-2 number, since 2×20130440423131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20130440423131.

It is not an unprimeable number, because it can be changed into a prime (20130440423101) 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, 14822416 + ... + 16123426.

It is an arithmetic number, because the mean of its divisors is an integer number (2603081072250).

Almost surely, 2^{20130440423131} is an apocalyptic number.

20130440423131 is a deficient number, since it is larger than the sum of its proper divisors (694208154869).

20130440423131 is a wasteful number, since it uses less digits than its factorization.

20130440423131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834589.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20130440423131 its reverse (13132404403102), we get a palindrome (33262844826233).

The spelling of 20130440423131 in words is "twenty trillion, one hundred thirty billion, four hundred forty million, four hundred twenty-three thousand, one hundred thirty-one".