102345520435 has 4 divisors (see below), whose sum is σ = 122814624528. Its totient is φ = 81876416344.

The previous prime is 102345520421. The next prime is 102345520457. The reversal of 102345520435 is 534025543201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534025543201 = 138563 ⋅3854027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102345520435 is a prime.

It is a super-2 number, since 2×102345520435² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102345520435.

It is an unprimeable number.

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, 10234552039 + ... + 10234552048.

It is an arithmetic number, because the mean of its divisors is an integer number (30703656132).

Almost surely, 2^102345520435 is an apocalyptic number.

102345520435 is a deficient number, since it is larger than the sum of its proper divisors (20469104093).

102345520435 is an equidigital number, since it uses as much as digits as its factorization.

102345520435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469104092.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 102345520435 in words is "one hundred two billion, three hundred forty-five million, five hundred twenty thousand, four hundred thirty-five".