431132102155121 has 4 divisors (see below), whose sum is σ = 433987281639744. Its totient is φ = 428276922670500.

The previous prime is 431132102155039. The next prime is 431132102155199. The reversal of 431132102155121 is 121551201231134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431132102155121 - 2¹⁸ = 431132101892977 is a prime.

It is a super-2 number, since 2×431132102155121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431132102155421) 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, 1427589742085 + ... + 1427589742386.

It is an arithmetic number, because the mean of its divisors is an integer number (108496820409936).

Almost surely, 2^{431132102155121} is an apocalyptic number.

It is an amenable number.

431132102155121 is a deficient number, since it is larger than the sum of its proper divisors (2855179484623).

431132102155121 is a wasteful number, since it uses less digits than its factorization.

431132102155121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855179484622.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 431132102155121 its reverse (121551201231134), we get a palindrome (552683303386255).

The spelling of 431132102155121 in words is "four hundred thirty-one trillion, one hundred thirty-two billion, one hundred two million, one hundred fifty-five thousand, one hundred twenty-one".