1031013213 has 4 divisors (see below), whose sum is σ = 1374684288. Its totient is φ = 687342140.

The previous prime is 1031013163. The next prime is 1031013241. The reversal of 1031013213 is 3123101301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3123101301 = 3 ⋅1041033767.

It is a cyclic number.

It is not a de Polignac number, because 1031013213 - 2⁶ = 1031013149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031013192 and 1031013201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031013253) 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, 171835533 + ... + 171835538.

It is an arithmetic number, because the mean of its divisors is an integer number (343671072).

Almost surely, 2^1031013213 is an apocalyptic number.

It is an amenable number.

1031013213 is a deficient number, since it is larger than the sum of its proper divisors (343671075).

1031013213 is an equidigital number, since it uses as much as digits as its factorization.

1031013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343671074.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1031013213 is about 32109.3944664175. The cubic root of 1031013213 is about 1010.2326729253.

Adding to 1031013213 its reverse (3123101301), we get a palindrome (4154114514).

The spelling of 1031013213 in words is "one billion, thirty-one million, thirteen thousand, two hundred thirteen".