11231554240442 has 8 divisors (see below), whose sum is σ = 16847353023732. Its totient is φ = 5615769899200.

The previous prime is 11231554240441. The next prime is 11231554240447. The reversal of 11231554240442 is 24404245513211.

It can be written as a sum of positive squares in 2 ways, for example, as 11231419471561 + 134768881 = 3351331^2 + 11609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11231554240442² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11231554240396 and 11231554240405.

It is not an unprimeable number, because it can be changed into a prime (11231554240441) 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, 1394159 + ... + 4940322.

Almost surely, 2^{11231554240442} is an apocalyptic number.

11231554240442 is a deficient number, since it is larger than the sum of its proper divisors (5615798783290).

11231554240442 is an equidigital number, since it uses as much as digits as its factorization.

11231554240442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221024.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 11231554240442 its reverse (24404245513211), we get a palindrome (35635799753653).

The spelling of 11231554240442 in words is "eleven trillion, two hundred thirty-one billion, five hundred fifty-four million, two hundred forty thousand, four hundred forty-two".