102131537377 has 8 divisors (see below), whose sum is σ = 104895975656. Its totient is φ = 99367316352.

The previous prime is 102131537293. The next prime is 102131537423. The reversal of 102131537377 is 773735131201.

It can be written as a sum of positive squares in 4 ways, for example, as 79123501521 + 23008035856 = 281289^2 + 151684^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102131537377 - 2³⁵ = 67771799009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102131537077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468093 + ... + 1536085.

It is an arithmetic number, because the mean of its divisors is an integer number (13111996957).

Almost surely, 2^102131537377 is an apocalyptic number.

It is an amenable number.

102131537377 is a deficient number, since it is larger than the sum of its proper divisors (2764438279).

102131537377 is an equidigital number, since it uses as much as digits as its factorization.

102131537377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108627.

The product of its (nonzero) digits is 92610, while the sum is 40.

Adding to 102131537377 its reverse (773735131201), we get a palindrome (875866668578).

The spelling of 102131537377 in words is "one hundred two billion, one hundred thirty-one million, five hundred thirty-seven thousand, three hundred seventy-seven".