101551223 has 2 divisors, whose sum is σ = 101551224. Its totient is φ = 101551222.

The previous prime is 101551207. The next prime is 101551231. The reversal of 101551223 is 322155101.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (322155101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101551223 - 2⁴ = 101551207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101551195 and 101551204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101551253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50775611 + 50775612.

It is an arithmetic number, because the mean of its divisors is an integer number (50775612).

Almost surely, 2^101551223 is an apocalyptic number.

101551223 is a deficient number, since it is larger than the sum of its proper divisors (1).

101551223 is an equidigital number, since it uses as much as digits as its factorization.

101551223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 101551223 is about 10077.2626739606. The cubic root of 101551223 is about 466.5466256437.

The spelling of 101551223 in words is "one hundred one million, five hundred fifty-one thousand, two hundred twenty-three".