40430013231 has 16 divisors (see below), whose sum is σ = 54152955648. Its totient is φ = 26830300800.

The previous prime is 40430013193. The next prime is 40430013251. The reversal of 40430013231 is 13231003404.

40430013231 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 40430013231 - 2⁶ = 40430013167 is a prime.

It is a super-2 number, since 2×40430013231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40430013198 and 40430013207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40430013251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949740 + ... + 1970366.

It is an arithmetic number, because the mean of its divisors is an integer number (3384559728).

Almost surely, 2^40430013231 is an apocalyptic number.

40430013231 is a deficient number, since it is larger than the sum of its proper divisors (13722942417).

40430013231 is a wasteful number, since it uses less digits than its factorization.

40430013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23582.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 40430013231 its reverse (13231003404), we get a palindrome (53661016635).

The spelling of 40430013231 in words is "forty billion, four hundred thirty million, thirteen thousand, two hundred thirty-one".