220031047 has 2 divisors, whose sum is σ = 220031048. Its totient is φ = 220031046.

The previous prime is 220031003. The next prime is 220031057. The reversal of 220031047 is 740130022.

220031047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220031047 - 2⁷ = 220030919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220031057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110015523 + 110015524.

It is an arithmetic number, because the mean of its divisors is an integer number (110015524).

Almost surely, 2^220031047 is an apocalyptic number.

220031047 is a deficient number, since it is larger than the sum of its proper divisors (1).

220031047 is an equidigital number, since it uses as much as digits as its factorization.

220031047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 220031047 is about 14833.4435314259. The cubic root of 220031047 is about 603.7094700505.

Adding to 220031047 its reverse (740130022), we get a palindrome (960161069).

The spelling of 220031047 in words is "two hundred twenty million, thirty-one thousand, forty-seven".