20932013042 has 4 divisors (see below), whose sum is σ = 31398019566. Its totient is φ = 10466006520.

The previous prime is 20932013027. The next prime is 20932013059. The reversal of 20932013042 is 24031023902.

It is a Cunningham number, because it is equal to 144679²+1.

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., 20932013041 + 1 = 144679^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5233003259 + ... + 5233003262.

Almost surely, 2^20932013042 is an apocalyptic number.

20932013042 is a deficient number, since it is larger than the sum of its proper divisors (10466006524).

20932013042 is a wasteful number, since it uses less digits than its factorization.

20932013042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10466006523.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20932013042 its reverse (24031023902), we get a palindrome (44963036944).

The spelling of 20932013042 in words is "twenty billion, nine hundred thirty-two million, thirteen thousand, forty-two".