20133212019 has 8 divisors (see below), whose sum is σ = 27468568512. Its totient is φ = 13109998440.

The previous prime is 20133212009. The next prime is 20133212023. The reversal of 20133212019 is 91021233102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20133212019 - 2¹² = 20133207923 is a prime.

It is a super-2 number, since 2×20133212019² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20133212019.

It is not an unprimeable number, because it can be changed into a prime (20133212009) 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, 78035577 + ... + 78035834.

It is an arithmetic number, because the mean of its divisors is an integer number (3433571064).

Almost surely, 2^20133212019 is an apocalyptic number.

20133212019 is a deficient number, since it is larger than the sum of its proper divisors (7335356493).

20133212019 is a wasteful number, since it uses less digits than its factorization.

20133212019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156071457.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 20133212019 in words is "twenty billion, one hundred thirty-three million, two hundred twelve thousand, nineteen".