20011423002 has 16 divisors (see below), whose sum is σ = 40024237440. Its totient is φ = 6670242432.

The previous prime is 20011422989. The next prime is 20011423009. The reversal of 20011423002 is 20032411002.

It is not an unprimeable number, because it can be changed into a prime (20011423009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285738 + ... + 348810.

It is an arithmetic number, because the mean of its divisors is an integer number (2501514840).

Almost surely, 2^20011423002 is an apocalyptic number.

20011423002 is an abundant number, since it is smaller than the sum of its proper divisors (20012814438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011423002 is a wasteful number, since it uses less digits than its factorization.

20011423002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115957.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20011423002 its reverse (20032411002), we get a palindrome (40043834004).

The spelling of 20011423002 in words is "twenty billion, eleven million, four hundred twenty-three thousand, two".