20340444411 has 32 divisors (see below), whose sum is σ = 35171604480. Its totient is φ = 11375805888.

The previous prime is 20340444407. The next prime is 20340444431. The reversal of 20340444411 is 11444404302.

20340444411 is a `hidden beast` number, since 203 + 4 + 0 + 4 + 44 + 411 = 666.

It is not a de Polignac number, because 20340444411 - 2² = 20340444407 is a prime.

It is a super-2 number, since 2×20340444411² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20340444401) 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, 1136026 + ... + 1153791.

It is an arithmetic number, because the mean of its divisors is an integer number (1099112640).

Almost surely, 2^20340444411 is an apocalyptic number.

20340444411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20340444411 is a deficient number, since it is larger than the sum of its proper divisors (14831160069).

20340444411 is a wasteful number, since it uses less digits than its factorization.

20340444411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289880 (or 2289874 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20340444411 its reverse (11444404302), we get a palindrome (31784848713).

The spelling of 20340444411 in words is "twenty billion, three hundred forty million, four hundred forty-four thousand, four hundred eleven".