103100023021 has 2 divisors, whose sum is σ = 103100023022. Its totient is φ = 103100023020.

The previous prime is 103100023001. The next prime is 103100023043. The reversal of 103100023021 is 120320001301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102217041796 + 882981225 = 319714^2 + 29715^2 .

It is a cyclic number.

It is not a de Polignac number, because 103100023021 - 2¹⁷ = 103099891949 is a prime.

It is a super-2 number, since 2×103100023021² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103100022992 and 103100023010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103100023001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51550011510 + 51550011511.

It is an arithmetic number, because the mean of its divisors is an integer number (51550011511).

Almost surely, 2^103100023021 is an apocalyptic number.

It is an amenable number.

103100023021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103100023021 is an equidigital number, since it uses as much as digits as its factorization.

103100023021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 103100023021 its reverse (120320001301), we get a palindrome (223420024322).

The spelling of 103100023021 in words is "one hundred three billion, one hundred million, twenty-three thousand, twenty-one".