20045401311 has 32 divisors (see below), whose sum is σ = 29649500608. Its totient is φ = 11966330880.

The previous prime is 20045401291. The next prime is 20045401331. The reversal of 20045401311 is 11310454002.

It is an interprime number because it is at equal distance from previous prime (20045401291) and next prime (20045401331).

It is not a de Polignac number, because 20045401311 - 2⁶ = 20045401247 is a prime.

It is a super-2 number, since 2×20045401311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045401331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465681 + ... + 506901.

It is an arithmetic number, because the mean of its divisors is an integer number (926546894).

Almost surely, 2^20045401311 is an apocalyptic number.

20045401311 is a deficient number, since it is larger than the sum of its proper divisors (9604099297).

20045401311 is a wasteful number, since it uses less digits than its factorization.

20045401311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41611.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20045401311 its reverse (11310454002), we get a palindrome (31355855313).

The spelling of 20045401311 in words is "twenty billion, forty-five million, four hundred one thousand, three hundred eleven".