1301232101 has 4 divisors (see below), whose sum is σ = 1401326892. Its totient is φ = 1201137312.

The previous prime is 1301232091. The next prime is 1301232131. The reversal of 1301232101 is 1012321031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 631768225 + 669463876 = 25135^2 + 25874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301232101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301232131) 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, 50047376 + ... + 50047401.

It is an arithmetic number, because the mean of its divisors is an integer number (350331723).

Almost surely, 2^1301232101 is an apocalyptic number.

It is an amenable number.

1301232101 is a deficient number, since it is larger than the sum of its proper divisors (100094791).

1301232101 is a wasteful number, since it uses less digits than its factorization.

1301232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100094790.

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

The square root of 1301232101 is about 36072.5948747799. The cubic root of 1301232101 is about 1091.7375706668.

Adding to 1301232101 its reverse (1012321031), we get a palindrome (2313553132).

The spelling of 1301232101 in words is "one billion, three hundred one million, two hundred thirty-two thousand, one hundred one".