11401521514 has 4 divisors (see below), whose sum is σ = 17102282274. Its totient is φ = 5700760756.

The previous prime is 11401521497. The next prime is 11401521541. The reversal of 11401521514 is 41512510411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9673706025 + 1727815489 = 98355^2 + 41567^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2850380377 + ... + 2850380380.

Almost surely, 2^11401521514 is an apocalyptic number.

11401521514 is a deficient number, since it is larger than the sum of its proper divisors (5700760760).

11401521514 is an equidigital number, since it uses as much as digits as its factorization.

11401521514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5700760759.

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 11401521514 in words is "eleven billion, four hundred one million, five hundred twenty-one thousand, five hundred fourteen".