20132443401231 has 32 divisors (see below), whose sum is σ = 32483300520960. Its totient is φ = 10827298331136.

The previous prime is 20132443401209. The next prime is 20132443401311. The reversal of 20132443401231 is 13210434423102.

It is not a de Polignac number, because 20132443401231 - 2⁵ = 20132443401199 is a prime.

It is a super-2 number, since 2×20132443401231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132443401331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16592505 + ... + 17764461.

It is an arithmetic number, because the mean of its divisors is an integer number (1015103141280).

Almost surely, 2^{20132443401231} is an apocalyptic number.

20132443401231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20132443401231 is a deficient number, since it is larger than the sum of its proper divisors (12350857119729).

20132443401231 is a wasteful number, since it uses less digits than its factorization.

20132443401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220103.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 20132443401231 its reverse (13210434423102), we get a palindrome (33342877824333).

The spelling of 20132443401231 in words is "twenty trillion, one hundred thirty-two billion, four hundred forty-three million, four hundred one thousand, two hundred thirty-one".