22643431102 has 4 divisors (see below), whose sum is σ = 33965146656. Its totient is φ = 11321715550.

The previous prime is 22643431093. The next prime is 22643431133. The reversal of 22643431102 is 20113434622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20113434622 = 2 ⋅10056717311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660857774 + ... + 5660857777.

It is an arithmetic number, because the mean of its divisors is an integer number (8491286664).

Almost surely, 2^22643431102 is an apocalyptic number.

22643431102 is a deficient number, since it is larger than the sum of its proper divisors (11321715554).

22643431102 is a wasteful number, since it uses less digits than its factorization.

22643431102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321715553.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 22643431102 its reverse (20113434622), we get a palindrome (42756865724).

The spelling of 22643431102 in words is "twenty-two billion, six hundred forty-three million, four hundred thirty-one thousand, one hundred two".