20011213334 has 32 divisors (see below), whose sum is σ = 35165491200. Its totient is φ = 8361380160.

The previous prime is 20011213309. The next prime is 20011213351. The reversal of 20011213334 is 43331211002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 895307 + ... + 917385.

It is an arithmetic number, because the mean of its divisors is an integer number (1098921600).

Almost surely, 2^20011213334 is an apocalyptic number.

20011213334 is a deficient number, since it is larger than the sum of its proper divisors (15154277866).

20011213334 is a wasteful number, since it uses less digits than its factorization.

20011213334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23708.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20011213334 its reverse (43331211002), we get a palindrome (63342424336).

The spelling of 20011213334 in words is "twenty billion, eleven million, two hundred thirteen thousand, three hundred thirty-four".