11231440010121 has 4 divisors (see below), whose sum is σ = 14975253346832. Its totient is φ = 7487626673412.

The previous prime is 11231440010113. The next prime is 11231440010237. The reversal of 11231440010121 is 12101004413211.

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 not a de Polignac number, because 11231440010121 - 2³ = 11231440010113 is a prime.

It is a super-2 number, since 2×11231440010121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231440010101) 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, 1871906668351 + ... + 1871906668356.

It is an arithmetic number, because the mean of its divisors is an integer number (3743813336708).

Almost surely, 2^{11231440010121} is an apocalyptic number.

It is an amenable number.

11231440010121 is a deficient number, since it is larger than the sum of its proper divisors (3743813336711).

11231440010121 is an equidigital number, since it uses as much as digits as its factorization.

11231440010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743813336710.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11231440010121 its reverse (12101004413211), we get a palindrome (23332444423332).

The spelling of 11231440010121 in words is "eleven trillion, two hundred thirty-one billion, four hundred forty million, ten thousand, one hundred twenty-one".