1230101123 has 4 divisors (see below), whose sum is σ = 1237936320. Its totient is φ = 1222265928.

The previous prime is 1230101083. The next prime is 1230101143. The reversal of 1230101123 is 3211010321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211010321 = 1009 ⋅3182369.

It is a cyclic number.

It is not a de Polignac number, because 1230101123 - 2⁸ = 1230100867 is a prime.

It is a super-2 number, since 2×1230101123² = 3026297545611722258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230101098 and 1230101107.

It is not an unprimeable number, because it can be changed into a prime (1230101143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3917363 + ... + 3917676.

It is an arithmetic number, because the mean of its divisors is an integer number (309484080).

Almost surely, 2^1230101123 is an apocalyptic number.

1230101123 is a deficient number, since it is larger than the sum of its proper divisors (7835197).

1230101123 is an equidigital number, since it uses as much as digits as its factorization.

1230101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7835196.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1230101123 is about 35072.7974789580. The cubic root of 1230101123 is about 1071.4706313131.

Adding to 1230101123 its reverse (3211010321), we get a palindrome (4441111444).

The spelling of 1230101123 in words is "one billion, two hundred thirty million, one hundred one thousand, one hundred twenty-three".