15420430131 has 16 divisors (see below), whose sum is σ = 20639683584. Its totient is φ = 10240808544.

The previous prime is 15420430127. The next prime is 15420430133. The reversal of 15420430131 is 13103402451.

It is a happy number.

15420430131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15420430131 - 2² = 15420430127 is a prime.

It is a super-2 number, since 2×15420430131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15420430133) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 841341 + ... + 859473.

It is an arithmetic number, because the mean of its divisors is an integer number (1289980224).

Almost surely, 2^15420430131 is an apocalyptic number.

15420430131 is a deficient number, since it is larger than the sum of its proper divisors (5219253453).

15420430131 is a wasteful number, since it uses less digits than its factorization.

15420430131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19210.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 15420430131 its reverse (13103402451), we get a palindrome (28523832582).

The spelling of 15420430131 in words is "fifteen billion, four hundred twenty million, four hundred thirty thousand, one hundred thirty-one".