11621100047 has 2 divisors, whose sum is σ = 11621100048. Its totient is φ = 11621100046.

The previous prime is 11621100031. The next prime is 11621100053. The reversal of 11621100047 is 74000112611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11621100047 - 2⁴ = 11621100031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11621099995 and 11621100031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11621100077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810550023 + 5810550024.

It is an arithmetic number, because the mean of its divisors is an integer number (5810550024).

Almost surely, 2^11621100047 is an apocalyptic number.

11621100047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621100047 is an equidigital number, since it uses as much as digits as its factorization.

11621100047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 11621100047 its reverse (74000112611), we get a palindrome (85621212658).

The spelling of 11621100047 in words is "eleven billion, six hundred twenty-one million, one hundred thousand, forty-seven".