20112400034 has 4 divisors (see below), whose sum is σ = 30168600054. Its totient is φ = 10056200016.

The previous prime is 20112400031. The next prime is 20112400037. The reversal of 20112400034 is 43000421102.

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 (20112400031) and next prime (20112400037).

It can be written as a sum of positive squares in only one way, i.e., 19075753225 + 1036646809 = 138115^2 + 32197^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20112399985 and 20112400021.

It is not an unprimeable number, because it can be changed into a prime (20112400031) by changing a digit.

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, 5028100007 + ... + 5028100010.

Almost surely, 2^20112400034 is an apocalyptic number.

20112400034 is a deficient number, since it is larger than the sum of its proper divisors (10056200020).

20112400034 is a wasteful number, since it uses less digits than its factorization.

20112400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056200019.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20112400034 its reverse (43000421102), we get a palindrome (63112821136).

The spelling of 20112400034 in words is "twenty billion, one hundred twelve million, four hundred thousand, thirty-four".