103131213 has 8 divisors (see below), whose sum is σ = 137589408. Its totient is φ = 68713584.

The previous prime is 103131211. The next prime is 103131229. The reversal of 103131213 is 312131301.

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

It is not a de Polignac number, because 103131213 - 2¹ = 103131211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103131192 and 103131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103131211) 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, 3606 + ... + 14807.

It is an arithmetic number, because the mean of its divisors is an integer number (17198676).

Almost surely, 2^103131213 is an apocalyptic number.

It is an amenable number.

103131213 is a deficient number, since it is larger than the sum of its proper divisors (34458195).

103131213 is a wasteful number, since it uses less digits than its factorization.

103131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20283.

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

The square root of 103131213 is about 10155.3539081610. The cubic root of 103131213 is about 468.9537811923.

Adding to 103131213 its reverse (312131301), we get a palindrome (415262514).

The spelling of 103131213 in words is "one hundred three million, one hundred thirty-one thousand, two hundred thirteen".