201053121431 has 4 divisors (see below), whose sum is σ = 201055454664. Its totient is φ = 201050788200.

The previous prime is 201053121361. The next prime is 201053121443. The reversal of 201053121431 is 134121350102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134121350102 = 2 ⋅67060675051.

It is a cyclic number.

It is not a de Polignac number, because 201053121431 - 2¹⁴ = 201053105047 is a prime.

It is a super-2 number, since 2×201053121431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201053121397 and 201053121406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201053121461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032200 + ... + 1211421.

It is an arithmetic number, because the mean of its divisors is an integer number (50263863666).

Almost surely, 2^201053121431 is an apocalyptic number.

201053121431 is a deficient number, since it is larger than the sum of its proper divisors (2333233).

201053121431 is an equidigital number, since it uses as much as digits as its factorization.

201053121431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333232.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 201053121431 its reverse (134121350102), we get a palindrome (335174471533).

The spelling of 201053121431 in words is "two hundred one billion, fifty-three million, one hundred twenty-one thousand, four hundred thirty-one".