31420213411 has 4 divisors (see below), whose sum is σ = 31450167000. Its totient is φ = 31390259824.

The previous prime is 31420213397. The next prime is 31420213421. The reversal of 31420213411 is 11431202413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11431202413 = 71551 ⋅159763.

It is a cyclic number.

It is not a de Polignac number, because 31420213411 - 2⁷ = 31420213283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31420213421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14975221 + ... + 14977318.

It is an arithmetic number, because the mean of its divisors is an integer number (7862541750).

Almost surely, 2^31420213411 is an apocalyptic number.

31420213411 is a deficient number, since it is larger than the sum of its proper divisors (29953589).

31420213411 is a wasteful number, since it uses less digits than its factorization.

31420213411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29953588.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31420213411 its reverse (11431202413), we get a palindrome (42851415824).

The spelling of 31420213411 in words is "thirty-one billion, four hundred twenty million, two hundred thirteen thousand, four hundred eleven".