102577477231 has 4 divisors (see below), whose sum is σ = 104316078600. Its totient is φ = 100838875864.

The previous prime is 102577477193. The next prime is 102577477237. The reversal of 102577477231 is 132774775201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132774775201 = 73 ⋅1818832537.

It is a cyclic number.

It is not a de Polignac number, because 102577477231 - 2⁷ = 102577477103 is a prime.

It is a super-2 number, since 2×102577477231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102577477237) 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 in 3 ways as a sum of consecutive naturals, for example, 869300596 + ... + 869300713.

It is an arithmetic number, because the mean of its divisors is an integer number (26079019650).

Almost surely, 2^102577477231 is an apocalyptic number.

102577477231 is a deficient number, since it is larger than the sum of its proper divisors (1738601369).

102577477231 is an equidigital number, since it uses as much as digits as its factorization.

102577477231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738601368.

The product of its (nonzero) digits is 576240, while the sum is 46.

The spelling of 102577477231 in words is "one hundred two billion, five hundred seventy-seven million, four hundred seventy-seven thousand, two hundred thirty-one".