103142310221 has 2 divisors, whose sum is σ = 103142310222. Its totient is φ = 103142310220.

The previous prime is 103142310209. The next prime is 103142310239. The reversal of 103142310221 is 122013241301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52454740900 + 50687569321 = 229030^2 + 225139^2 .

It is a cyclic number.

It is not a de Polignac number, because 103142310221 - 2³⁰ = 102068568397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103142310193 and 103142310202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103142310241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51571155110 + 51571155111.

It is an arithmetic number, because the mean of its divisors is an integer number (51571155111).

Almost surely, 2^103142310221 is an apocalyptic number.

It is an amenable number.

103142310221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103142310221 is an equidigital number, since it uses as much as digits as its factorization.

103142310221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 103142310221 its reverse (122013241301), we get a palindrome (225155551522).

The spelling of 103142310221 in words is "one hundred three billion, one hundred forty-two million, three hundred ten thousand, two hundred twenty-one".