1210231123 has 2 divisors, whose sum is σ = 1210231124. Its totient is φ = 1210231122.

The previous prime is 1210231109. The next prime is 1210231159. The reversal of 1210231123 is 3211320121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210231123 - 2⁵ = 1210231091 is a prime.

It is a super-2 number, since 2×1210231123² = 2929318742155682258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210231097 and 1210231106.

It is not a weakly prime, because it can be changed into another prime (1210231823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605115561 + 605115562.

It is an arithmetic number, because the mean of its divisors is an integer number (605115562).

Almost surely, 2^1210231123 is an apocalyptic number.

1210231123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210231123 is an equidigital number, since it uses as much as digits as its factorization.

1210231123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1210231123 is about 34788.3762627691. The cubic root of 1210231123 is about 1065.6700796058.

Adding to 1210231123 its reverse (3211320121), we get a palindrome (4421551244).

The spelling of 1210231123 in words is "one billion, two hundred ten million, two hundred thirty-one thousand, one hundred twenty-three".