20401042299 has 8 divisors (see below), whose sum is σ = 29674243392. Its totient is φ = 12364268040.

The previous prime is 20401042241. The next prime is 20401042367. The reversal of 20401042299 is 99224010402.

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

It is not a de Polignac number, because 20401042299 - 2⁷ = 20401042171 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 618213403 = 20401042299 / (2 + 0 + 4 + 0 + 1 + 0 + 4 + 2 + 2 + 9 + 9).

It is not an unprimeable number, because it can be changed into a prime (20401042199) 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, 309106669 + ... + 309106734.

It is an arithmetic number, because the mean of its divisors is an integer number (3709280424).

Almost surely, 2^20401042299 is an apocalyptic number.

20401042299 is a deficient number, since it is larger than the sum of its proper divisors (9273201093).

20401042299 is a wasteful number, since it uses less digits than its factorization.

20401042299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618213417.

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 20401042299 in words is "twenty billion, four hundred one million, forty-two thousand, two hundred ninety-nine".