42552631111 has 2 divisors, whose sum is σ = 42552631112. Its totient is φ = 42552631110.

The previous prime is 42552631081. The next prime is 42552631117. The reversal of 42552631111 is 11113625524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42552631111 - 2²¹ = 42550533959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42552631117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276315555 + 21276315556.

It is an arithmetic number, because the mean of its divisors is an integer number (21276315556).

Almost surely, 2^42552631111 is an apocalyptic number.

42552631111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42552631111 is an equidigital number, since it uses as much as digits as its factorization.

42552631111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The spelling of 42552631111 in words is "forty-two billion, five hundred fifty-two million, six hundred thirty-one thousand, one hundred eleven".