31113300010213 has 4 divisors (see below), whose sum is σ = 31539509599468. Its totient is φ = 30687090420960.

The previous prime is 31113300010189. The next prime is 31113300010237. The reversal of 31113300010213 is 31201000331113.

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

It is an interprime number because it is at equal distance from previous prime (31113300010189) and next prime (31113300010237).

It can be written as a sum of positive squares in 2 ways, for example, as 11174726351044 + 19938573659169 = 3342862^2 + 4465263^2 .

It is a cyclic number.

It is not a de Polignac number, because 31113300010213 - 2¹³ = 31113300002021 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 (31113300710213) 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, 213104794518 + ... + 213104794663.

It is an arithmetic number, because the mean of its divisors is an integer number (7884877399867).

Almost surely, 2^{31113300010213} is an apocalyptic number.

It is an amenable number.

31113300010213 is a deficient number, since it is larger than the sum of its proper divisors (426209589255).

31113300010213 is an equidigital number, since it uses as much as digits as its factorization.

31113300010213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426209589254.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31113300010213 its reverse (31201000331113), we get a palindrome (62314300341326).

The spelling of 31113300010213 in words is "thirty-one trillion, one hundred thirteen billion, three hundred million, ten thousand, two hundred thirteen".