31430254120 has 16 divisors (see below), whose sum is σ = 70718071860. Its totient is φ = 12572101632.

The previous prime is 31430254111. The next prime is 31430254129. The reversal of 31430254120 is 2145203413.

It is an interprime number because it is at equal distance from previous prime (31430254111) and next prime (31430254129).

It can be written as a sum of positive squares in 2 ways, for example, as 31236320644 + 193933476 = 176738^2 + 13926^2 .

It is not an unprimeable number, because it can be changed into a prime (31430254129) 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 3 ways as a sum of consecutive naturals, for example, 392878137 + ... + 392878216.

Almost surely, 2^31430254120 is an apocalyptic number.

It is an amenable number.

31430254120 is an abundant number, since it is smaller than the sum of its proper divisors (39287817740).

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

31430254120 is a wasteful number, since it uses less digits than its factorization.

31430254120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785756364 (or 785756360 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 31430254120 its reverse (2145203413), we get a palindrome (33575457533).

The spelling of 31430254120 in words is "thirty-one billion, four hundred thirty million, two hundred fifty-four thousand, one hundred twenty".