1303123101 has 24 divisors (see below), whose sum is σ = 2026090080. Its totient is φ = 742829472.

The previous prime is 1303123097. The next prime is 1303123111. The reversal of 1303123101 is 1013213031.

It is not a de Polignac number, because 1303123101 - 2² = 1303123097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303123111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51015 + ... + 72171.

It is an arithmetic number, because the mean of its divisors is an integer number (84420420).

Almost surely, 2^1303123101 is an apocalyptic number.

It is an amenable number.

1303123101 is a deficient number, since it is larger than the sum of its proper divisors (722966979).

1303123101 is a wasteful number, since it uses less digits than its factorization.

1303123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21593 (or 21586 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1303123101 is about 36098.7963926777. The cubic root of 1303123101 is about 1092.2661662168.

Adding to 1303123101 its reverse (1013213031), we get a palindrome (2316336132).

The spelling of 1303123101 in words is "one billion, three hundred three million, one hundred twenty-three thousand, one hundred one".