20111303234 has 16 divisors (see below), whose sum is σ = 32912684640. Its totient is φ = 9140590560.

The previous prime is 20111303209. The next prime is 20111303323. The reversal of 20111303234 is 43230311102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212822 + ... + 292430.

It is an arithmetic number, because the mean of its divisors is an integer number (2057042790).

Almost surely, 2^20111303234 is an apocalyptic number.

20111303234 is a deficient number, since it is larger than the sum of its proper divisors (12801381406).

20111303234 is a wasteful number, since it uses less digits than its factorization.

20111303234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91105.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20111303234 its reverse (43230311102), we get a palindrome (63341614336).

The spelling of 20111303234 in words is "twenty billion, one hundred eleven million, three hundred three thousand, two hundred thirty-four".