20310011234 has 4 divisors (see below), whose sum is σ = 30465016854. Its totient is φ = 10155005616.

The previous prime is 20310011233. The next prime is 20310011237. The reversal of 20310011234 is 43211001302.

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., 16229995609 + 4080015625 = 127397^2 + 63875^2 .

It is not an unprimeable number, because it can be changed into a prime (20310011233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077502807 + ... + 5077502810.

Almost surely, 2^20310011234 is an apocalyptic number.

20310011234 is a deficient number, since it is larger than the sum of its proper divisors (10155005620).

20310011234 is a wasteful number, since it uses less digits than its factorization.

20310011234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155005619.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20310011234 its reverse (43211001302), we get a palindrome (63521012536).

The spelling of 20310011234 in words is "twenty billion, three hundred ten million, eleven thousand, two hundred thirty-four".