220031100103 has 2 divisors, whose sum is σ = 220031100104. Its totient is φ = 220031100102.

The previous prime is 220031100013. The next prime is 220031100137. The reversal of 220031100103 is 301001130022.

Together with previous prime (220031100013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220031100103 - 2²⁵ = 219997545671 is a prime.

It is a super-2 number, since 2×220031100103² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220031800103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110015550051 + 110015550052.

It is an arithmetic number, because the mean of its divisors is an integer number (110015550052).

Almost surely, 2^220031100103 is an apocalyptic number.

220031100103 is a deficient number, since it is larger than the sum of its proper divisors (1).

220031100103 is an equidigital number, since it uses as much as digits as its factorization.

220031100103 is an evil number, because the sum of its binary digits is even.

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

Adding to 220031100103 its reverse (301001130022), we get a palindrome (521032230125).

The spelling of 220031100103 in words is "two hundred twenty billion, thirty-one million, one hundred thousand, one hundred three".