11542305554231 has 4 divisors (see below), whose sum is σ = 11542312464264. Its totient is φ = 11542298644200.

The previous prime is 11542305554201. The next prime is 11542305554279. The reversal of 11542305554231 is 13245550324511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11542305554231 is a prime.

It is a super-2 number, since 2×11542305554231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542305554201) 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, 784976 + ... + 4868346.

It is an arithmetic number, because the mean of its divisors is an integer number (2885578116066).

Almost surely, 2^{11542305554231} is an apocalyptic number.

11542305554231 is a deficient number, since it is larger than the sum of its proper divisors (6910033).

11542305554231 is an equidigital number, since it uses as much as digits as its factorization.

11542305554231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6910032.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 11542305554231 its reverse (13245550324511), we get a palindrome (24787855878742).

The spelling of 11542305554231 in words is "eleven trillion, five hundred forty-two billion, three hundred five million, five hundred fifty-four thousand, two hundred thirty-one".