11201451691 has 8 divisors (see below), whose sum is σ = 12484590480. Its totient is φ = 9987671808.

The previous prime is 11201451671. The next prime is 11201451713. The reversal of 11201451691 is 19615410211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11201451691 - 2⁵ = 11201451659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201451631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17339386 + ... + 17340031.

It is an arithmetic number, because the mean of its divisors is an integer number (1560573810).

Almost surely, 2^11201451691 is an apocalyptic number.

11201451691 is a deficient number, since it is larger than the sum of its proper divisors (1283138789).

11201451691 is a wasteful number, since it uses less digits than its factorization.

11201451691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34679453.

The product of its (nonzero) digits is 2160, while the sum is 31.

The spelling of 11201451691 in words is "eleven billion, two hundred one million, four hundred fifty-one thousand, six hundred ninety-one".