31020130213 has 8 divisors (see below), whose sum is σ = 31325963328. Its totient is φ = 30714592224.

The previous prime is 31020130201. The next prime is 31020130223. The reversal of 31020130213 is 31203102013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31020130213 - 2¹⁷ = 31019999141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020130223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140520 + ... + 285982.

It is an arithmetic number, because the mean of its divisors is an integer number (3915745416).

Almost surely, 2^31020130213 is an apocalyptic number.

It is an amenable number.

31020130213 is a deficient number, since it is larger than the sum of its proper divisors (305833115).

31020130213 is a wasteful number, since it uses less digits than its factorization.

31020130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147563.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31020130213 its reverse (31203102013), we get a palindrome (62223232226).

The spelling of 31020130213 in words is "thirty-one billion, twenty million, one hundred thirty thousand, two hundred thirteen".