1232400101 has 2 divisors, whose sum is σ = 1232400102. Its totient is φ = 1232400100.

The previous prime is 1232400073. The next prime is 1232400157. The reversal of 1232400101 is 1010042321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1124260900 + 108139201 = 33530^2 + 10399^2 .

It is an emirp because it is prime and its reverse (1010042321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1232400101 - 2³⁰ = 158658277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232400161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616200050 + 616200051.

It is an arithmetic number, because the mean of its divisors is an integer number (616200051).

Almost surely, 2^1232400101 is an apocalyptic number.

It is an amenable number.

1232400101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232400101 is an equidigital number, since it uses as much as digits as its factorization.

1232400101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1232400101 is about 35105.5565544829. The cubic root of 1232400101 is about 1072.1377185903.

Adding to 1232400101 its reverse (1010042321), we get a palindrome (2242442422).

The spelling of 1232400101 in words is "one billion, two hundred thirty-two million, four hundred thousand, one hundred one".