11621731106 has 4 divisors (see below), whose sum is σ = 17432596662. Its totient is φ = 5810865552.

The previous prime is 11621731027. The next prime is 11621731109. The reversal of 11621731106 is 60113712611.

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., 10021011025 + 1600720081 = 100105^2 + 40009^2 .

It is not an unprimeable number, because it can be changed into a prime (11621731109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2905432775 + ... + 2905432778.

Almost surely, 2^11621731106 is an apocalyptic number.

11621731106 is a deficient number, since it is larger than the sum of its proper divisors (5810865556).

11621731106 is an equidigital number, since it uses as much as digits as its factorization.

11621731106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810865555.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 11621731106 in words is "eleven billion, six hundred twenty-one million, seven hundred thirty-one thousand, one hundred six".