31411032409 has 4 divisors (see below), whose sum is σ = 31459135716. Its totient is φ = 31362929104.

The previous prime is 31411032407. The next prime is 31411032467. The reversal of 31411032409 is 90423011413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21571384384 + 9839648025 = 146872^2 + 99195^2 .

It is a cyclic number.

It is not a de Polignac number, because 31411032409 - 2¹ = 31411032407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31411032407) 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, 24050674 + ... + 24051979.

It is an arithmetic number, because the mean of its divisors is an integer number (7864783929).

Almost surely, 2^31411032409 is an apocalyptic number.

It is an amenable number.

31411032409 is a deficient number, since it is larger than the sum of its proper divisors (48103307).

31411032409 is an equidigital number, since it uses as much as digits as its factorization.

31411032409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48103306.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 31411032409 in words is "thirty-one billion, four hundred eleven million, thirty-two thousand, four hundred nine".