11211055550407 has 2 divisors, whose sum is σ = 11211055550408. Its totient is φ = 11211055550406.

The previous prime is 11211055550381. The next prime is 11211055550423. The reversal of 11211055550407 is 70405555011211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211055550407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211055550447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605527775203 + 5605527775204.

It is an arithmetic number, because the mean of its divisors is an integer number (5605527775204).

Almost surely, 2^{11211055550407} is an apocalyptic number.

11211055550407 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211055550407 is an equidigital number, since it uses as much as digits as its factorization.

11211055550407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35000, while the sum is 37.

The spelling of 11211055550407 in words is "eleven trillion, two hundred eleven billion, fifty-five million, five hundred fifty thousand, four hundred seven".