11121253401 has 16 divisors (see below), whose sum is σ = 15040700096. Its totient is φ = 7308112896.

The previous prime is 11121253397. The next prime is 11121253427. The reversal of 11121253401 is 10435212111.

It is not a de Polignac number, because 11121253401 - 2² = 11121253397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121253301) 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, 362601 + ... + 392073.

It is an arithmetic number, because the mean of its divisors is an integer number (940043756).

Almost surely, 2^11121253401 is an apocalyptic number.

It is an amenable number.

11121253401 is a deficient number, since it is larger than the sum of its proper divisors (3919446695).

11121253401 is a wasteful number, since it uses less digits than its factorization.

11121253401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31272.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11121253401 its reverse (10435212111), we get a palindrome (21556465512).

The spelling of 11121253401 in words is "eleven billion, one hundred twenty-one million, two hundred fifty-three thousand, four hundred one".