20401432023111 has 8 divisors (see below), whose sum is σ = 27276029009664. Its totient is φ = 13563894859320.

The previous prime is 20401432023103. The next prime is 20401432023121. The reversal of 20401432023111 is 11132023410402.

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

It is not a de Polignac number, because 20401432023111 - 2³ = 20401432023103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401432023121) 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 7 ways as a sum of consecutive naturals, for example, 9264954405 + ... + 9264956606.

It is an arithmetic number, because the mean of its divisors is an integer number (3409503626208).

Almost surely, 2^{20401432023111} is an apocalyptic number.

20401432023111 is a deficient number, since it is larger than the sum of its proper divisors (6874596986553).

20401432023111 is a wasteful number, since it uses less digits than its factorization.

20401432023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18529911381.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20401432023111 its reverse (11132023410402), we get a palindrome (31533455433513).

The spelling of 20401432023111 in words is "twenty trillion, four hundred one billion, four hundred thirty-two million, twenty-three thousand, one hundred eleven".