102101342431 has 4 divisors (see below), whose sum is σ = 111383282664. Its totient is φ = 92819402200.

The previous prime is 102101342429. The next prime is 102101342443. The reversal of 102101342431 is 134243101201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102101342431 - 2¹ = 102101342429 is a prime.

It is a super-2 number, since 2×102101342431² (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 (102101342461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4640970100 + ... + 4640970121.

It is an arithmetic number, because the mean of its divisors is an integer number (27845820666).

Almost surely, 2^102101342431 is an apocalyptic number.

102101342431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102101342431 is a deficient number, since it is larger than the sum of its proper divisors (9281940233).

102101342431 is an equidigital number, since it uses as much as digits as its factorization.

102101342431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281940232.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 102101342431 its reverse (134243101201), we get a palindrome (236344443632).

The spelling of 102101342431 in words is "one hundred two billion, one hundred one million, three hundred forty-two thousand, four hundred thirty-one".