1231041401 has 2 divisors, whose sum is σ = 1231041402. Its totient is φ = 1231041400.

The previous prime is 1231041389. The next prime is 1231041419. The reversal of 1231041401 is 1041401321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 873793600 + 357247801 = 29560^2 + 18901^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231041401 - 2¹⁴ = 1231025017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231041401.

It is not a weakly prime, because it can be changed into another prime (1231041481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615520700 + 615520701.

It is an arithmetic number, because the mean of its divisors is an integer number (615520701).

Almost surely, 2^1231041401 is an apocalyptic number.

It is an amenable number.

1231041401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231041401 is an equidigital number, since it uses as much as digits as its factorization.

1231041401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1231041401 is about 35086.1995804618. The cubic root of 1231041401 is about 1071.7435692176.

Adding to 1231041401 its reverse (1041401321), we get a palindrome (2272442722).

The spelling of 1231041401 in words is "one billion, two hundred thirty-one million, forty-one thousand, four hundred one".