102406022643 has 4 divisors (see below), whose sum is σ = 136541363528. Its totient is φ = 68270681760.

The previous prime is 102406022627. The next prime is 102406022647. The reversal of 102406022643 is 346220604201.

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

It is not a de Polignac number, because 102406022643 - 2⁴ = 102406022627 is a prime.

It is a super-3 number, since 3×102406022643³ (a number of 34 digits) contains 333 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 102406022643.

It is not an unprimeable number, because it can be changed into a prime (102406022647) 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, 17067670438 + ... + 17067670443.

It is an arithmetic number, because the mean of its divisors is an integer number (34135340882).

Almost surely, 2^102406022643 is an apocalyptic number.

102406022643 is a deficient number, since it is larger than the sum of its proper divisors (34135340885).

102406022643 is an equidigital number, since it uses as much as digits as its factorization.

102406022643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34135340884.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 102406022643 its reverse (346220604201), we get a palindrome (448626626844).

The spelling of 102406022643 in words is "one hundred two billion, four hundred six million, twenty-two thousand, six hundred forty-three".