201301132431 has 16 divisors (see below), whose sum is σ = 306762508800. Its totient is φ = 115022496288.

The previous prime is 201301132423. The next prime is 201301132447. The reversal of 201301132431 is 134231103102.

It is not a de Polignac number, because 201301132431 - 2³ = 201301132423 is a prime.

It is a super-2 number, since 2×201301132431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 201301132398 and 201301132407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201301132421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99790 + ... + 642308.

It is an arithmetic number, because the mean of its divisors is an integer number (19172656800).

Almost surely, 2^201301132431 is an apocalyptic number.

201301132431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201301132431 is a deficient number, since it is larger than the sum of its proper divisors (105461376369).

201301132431 is a wasteful number, since it uses less digits than its factorization.

201301132431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560198.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 201301132431 its reverse (134231103102), we get a palindrome (335532235533).

The spelling of 201301132431 in words is "two hundred one billion, three hundred one million, one hundred thirty-two thousand, four hundred thirty-one".