11214157305 has 32 divisors (see below), whose sum is σ = 19335335040. Its totient is φ = 5517250560.

The previous prime is 11214157261. The next prime is 11214157337. The reversal of 11214157305 is 50375141211.

It is not a de Polignac number, because 11214157305 - 2¹⁹ = 11213633017 is a prime.

It is a super-2 number, since 2×11214157305² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297945 + ... + 333465.

It is an arithmetic number, because the mean of its divisors is an integer number (604229220).

Almost surely, 2^11214157305 is an apocalyptic number.

11214157305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11214157305 is a deficient number, since it is larger than the sum of its proper divisors (8121177735).

11214157305 is a wasteful number, since it uses less digits than its factorization.

11214157305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37161.

The product of its (nonzero) digits is 4200, while the sum is 30.

Adding to 11214157305 its reverse (50375141211), we get a palindrome (61589298516).

The spelling of 11214157305 in words is "eleven billion, two hundred fourteen million, one hundred fifty-seven thousand, three hundred five".