20102233402 has 16 divisors (see below), whose sum is σ = 31180038912. Its totient is φ = 9710012160.

The previous prime is 20102233391. The next prime is 20102233409. The reversal of 20102233402 is 20433220102.

It is a self number, because there is not a number n which added to its sum of digits gives 20102233402.

It is not an unprimeable number, because it can be changed into a prime (20102233409) 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, 245188 + ... + 316735.

It is an arithmetic number, because the mean of its divisors is an integer number (1948752432).

Almost surely, 2^20102233402 is an apocalyptic number.

20102233402 is a deficient number, since it is larger than the sum of its proper divisors (11077805510).

20102233402 is a wasteful number, since it uses less digits than its factorization.

20102233402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562533.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20102233402 its reverse (20433220102), we get a palindrome (40535453504).

The spelling of 20102233402 in words is "twenty billion, one hundred two million, two hundred thirty-three thousand, four hundred two".