231030543541 has 16 divisors (see below), whose sum is σ = 279600685056. Its totient is φ = 186354706176.

The previous prime is 231030543521. The next prime is 231030543559. The reversal of 231030543541 is 145345030132.

It is a cyclic number.

It is not a de Polignac number, because 231030543541 - 2⁷ = 231030543413 is a prime.

It is a super-2 number, since 2×231030543541² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231030543521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890275 + ... + 1120111.

It is an arithmetic number, because the mean of its divisors is an integer number (17475042816).

Almost surely, 2^231030543541 is an apocalyptic number.

It is an amenable number.

231030543541 is a deficient number, since it is larger than the sum of its proper divisors (48570141515).

231030543541 is a wasteful number, since it uses less digits than its factorization.

231030543541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238308.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 231030543541 its reverse (145345030132), we get a palindrome (376375573673).

The spelling of 231030543541 in words is "two hundred thirty-one billion, thirty million, five hundred forty-three thousand, five hundred forty-one".