11402121241 has 4 divisors (see below), whose sum is σ = 13030995712. Its totient is φ = 9773246772.

The previous prime is 11402121173. The next prime is 11402121259. The reversal of 11402121241 is 14212120411.

It is a happy number.

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 11402121241 - 2⁹ = 11402120729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11402121041) 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, 814437225 + ... + 814437238.

It is an arithmetic number, because the mean of its divisors is an integer number (3257748928).

Almost surely, 2^11402121241 is an apocalyptic number.

It is an amenable number.

11402121241 is a deficient number, since it is larger than the sum of its proper divisors (1628874471).

11402121241 is an equidigital number, since it uses as much as digits as its factorization.

11402121241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628874470.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11402121241 its reverse (14212120411), we get a palindrome (25614241652).

The spelling of 11402121241 in words is "eleven billion, four hundred two million, one hundred twenty-one thousand, two hundred forty-one".