20111010874 has 4 divisors (see below), whose sum is σ = 30166516314. Its totient is φ = 10055505436.

The previous prime is 20111010859. The next prime is 20111010889. The reversal of 20111010874 is 47801011102.

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

It is an interprime number because it is at equal distance from previous prime (20111010859) and next prime (20111010889).

It can be written as a sum of positive squares in only one way, i.e., 17730254025 + 2380756849 = 133155^2 + 48793^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027752717 + ... + 5027752720.

Almost surely, 2^20111010874 is an apocalyptic number.

20111010874 is a deficient number, since it is larger than the sum of its proper divisors (10055505440).

20111010874 is a wasteful number, since it uses less digits than its factorization.

20111010874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055505439.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 20111010874 its reverse (47801011102), we get a palindrome (67912021976).

The spelling of 20111010874 in words is "twenty billion, one hundred eleven million, ten thousand, eight hundred seventy-four".