103213103031 has 12 divisors (see below), whose sum is σ = 149094853440. Its totient is φ = 68804461440.

The previous prime is 103213103009. The next prime is 103213103041. The reversal of 103213103031 is 130301312301.

It is a happy number.

103213103031 is a `hidden beast` number, since 1 + 0 + 321 + 310 + 3 + 0 + 31 = 666.

It is not a de Polignac number, because 103213103031 - 2⁹ = 103213102519 is a prime.

It is a super-2 number, since 2×103213103031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103213102995 and 103213103013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103213103041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199591 + ... + 496248.

It is an arithmetic number, because the mean of its divisors is an integer number (12424571120).

Almost surely, 2^103213103031 is an apocalyptic number.

103213103031 is a deficient number, since it is larger than the sum of its proper divisors (45881750409).

103213103031 is a wasteful number, since it uses less digits than its factorization.

103213103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712326 (or 712323 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 103213103031 its reverse (130301312301), we get a palindrome (233514415332).

The spelling of 103213103031 in words is "one hundred three billion, two hundred thirteen million, one hundred three thousand, thirty-one".