20007212753 has 4 divisors (see below), whose sum is σ = 21826050288. Its totient is φ = 18188375220.

The previous prime is 20007212741. The next prime is 20007212809. The reversal of 20007212753 is 35721270002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20007212753 - 2⁴ = 20007212737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20007212453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909418751 + ... + 909418772.

It is an arithmetic number, because the mean of its divisors is an integer number (5456512572).

Almost surely, 2^20007212753 is an apocalyptic number.

It is an amenable number.

20007212753 is a deficient number, since it is larger than the sum of its proper divisors (1818837535).

20007212753 is a wasteful number, since it uses less digits than its factorization.

20007212753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818837534.

The product of its (nonzero) digits is 5880, while the sum is 29.

Adding to 20007212753 its reverse (35721270002), we get a palindrome (55728482755).

The spelling of 20007212753 in words is "twenty billion, seven million, two hundred twelve thousand, seven hundred fifty-three".