23131032202 has 4 divisors (see below), whose sum is σ = 34696548306. Its totient is φ = 11565516100.

The previous prime is 23131032191. The next prime is 23131032227. The reversal of 23131032202 is 20223013132.

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

It can be written as a sum of positive squares in only one way, i.e., 17148164401 + 5982867801 = 130951^2 + 77349^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23131032202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5782758049 + ... + 5782758052.

Almost surely, 2^23131032202 is an apocalyptic number.

23131032202 is a deficient number, since it is larger than the sum of its proper divisors (11565516104).

23131032202 is a wasteful number, since it uses less digits than its factorization.

23131032202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11565516103.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23131032202 its reverse (20223013132), we get a palindrome (43354045334).

The spelling of 23131032202 in words is "twenty-three billion, one hundred thirty-one million, thirty-two thousand, two hundred two".