103213031 has 8 divisors (see below), whose sum is σ = 107311344. Its totient is φ = 99190080.

The previous prime is 103213009. The next prime is 103213039. The reversal of 103213031 is 130312301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103213031 is a prime.

It is a super-2 number, since 2×103213031² = 21305859536413922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103212997 and 103213015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103213039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16040 + ... + 21533.

It is an arithmetic number, because the mean of its divisors is an integer number (13413918).

Almost surely, 2^103213031 is an apocalyptic number.

103213031 is a deficient number, since it is larger than the sum of its proper divisors (4098313).

103213031 is an equidigital number, since it uses as much as digits as its factorization.

103213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37681.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 103213031 is about 10159.3814280201. The cubic root of 103213031 is about 469.0777614996.

Adding to 103213031 its reverse (130312301), we get a palindrome (233525332).

The spelling of 103213031 in words is "one hundred three million, two hundred thirteen thousand, thirty-one".