103211431123 has 2 divisors, whose sum is σ = 103211431124. Its totient is φ = 103211431122.

The previous prime is 103211431079. The next prime is 103211431151. The reversal of 103211431123 is 321134112301.

It is a strong prime.

It is an emirp because it is prime and its reverse (321134112301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103211431123 is a prime.

It is a super-2 number, since 2×103211431123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103211431094 and 103211431103.

It is not a weakly prime, because it can be changed into another prime (103211131123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51605715561 + 51605715562.

It is an arithmetic number, because the mean of its divisors is an integer number (51605715562).

Almost surely, 2^103211431123 is an apocalyptic number.

103211431123 is a deficient number, since it is larger than the sum of its proper divisors (1).

103211431123 is an equidigital number, since it uses as much as digits as its factorization.

103211431123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 103211431123 its reverse (321134112301), we get a palindrome (424345543424).

The spelling of 103211431123 in words is "one hundred three billion, two hundred eleven million, four hundred thirty-one thousand, one hundred twenty-three".