11403502377461 has 2 divisors, whose sum is σ = 11403502377462. Its totient is φ = 11403502377460.

The previous prime is 11403502377457. The next prime is 11403502377499. The reversal of 11403502377461 is 16477320530411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6364797351025 + 5038705026436 = 2522855^2 + 2244706^2 .

It is a cyclic number.

It is not a de Polignac number, because 11403502377461 - 2² = 11403502377457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11403502377061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701751188730 + 5701751188731.

It is an arithmetic number, because the mean of its divisors is an integer number (5701751188731).

Almost surely, 2^{11403502377461} is an apocalyptic number.

It is an amenable number.

11403502377461 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403502377461 is an equidigital number, since it uses as much as digits as its factorization.

11403502377461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 11403502377461 in words is "eleven trillion, four hundred three billion, five hundred two million, three hundred seventy-seven thousand, four hundred sixty-one".