103021212091 has 8 divisors (see below), whose sum is σ = 117783470304. Its totient is φ = 88270189440.

The previous prime is 103021212089. The next prime is 103021212097. The reversal of 103021212091 is 190212120301.

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

It is a cyclic number.

It is not a de Polignac number, because 103021212091 - 2¹ = 103021212089 is a prime.

It is a super-2 number, since 2×103021212091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103021212097) 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, 2789230 + ... + 2825923.

It is an arithmetic number, because the mean of its divisors is an integer number (14722933788).

Almost surely, 2^103021212091 is an apocalyptic number.

103021212091 is a deficient number, since it is larger than the sum of its proper divisors (14762258213).

103021212091 is an equidigital number, since it uses as much as digits as its factorization.

103021212091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617781.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 103021212091 its reverse (190212120301), we get a palindrome (293233332392).

The spelling of 103021212091 in words is "one hundred three billion, twenty-one million, two hundred twelve thousand, ninety-one".