1246115205401 has 4 divisors (see below), whose sum is σ = 1359398405904. Its totient is φ = 1132832004900.

The previous prime is 1246115205353. The next prime is 1246115205449. The reversal of 1246115205401 is 1045025116421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1246115205353) and next prime (1246115205449).

It is a cyclic number.

It is not a de Polignac number, because 1246115205401 - 2¹⁸ = 1246114943257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1246115205451) 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, 56641600235 + ... + 56641600256.

It is an arithmetic number, because the mean of its divisors is an integer number (339849601476).

Almost surely, 2^{1246115205401} is an apocalyptic number.

1246115205401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1246115205401 is a deficient number, since it is larger than the sum of its proper divisors (113283200503).

1246115205401 is a wasteful number, since it uses less digits than its factorization.

1246115205401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113283200502.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 1246115205401 in words is "one trillion, two hundred forty-six billion, one hundred fifteen million, two hundred five thousand, four hundred one".