11211510052 has 6 divisors (see below), whose sum is σ = 19620142598. Its totient is φ = 5605755024.

The previous prime is 11211510031. The next prime is 11211510053. The reversal of 11211510052 is 25001511211.

It can be written as a sum of positive squares in only one way, i.e., 10262500416 + 949009636 = 101304^2 + 30806^2 .

It is not an unprimeable number, because it can be changed into a prime (11211510053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401438753 + ... + 1401438760.

Almost surely, 2^11211510052 is an apocalyptic number.

It is an amenable number.

11211510052 is a deficient number, since it is larger than the sum of its proper divisors (8408632546).

11211510052 is a wasteful number, since it uses less digits than its factorization.

11211510052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802877517 (or 2802877515 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 19.

The spelling of 11211510052 in words is "eleven billion, two hundred eleven million, five hundred ten thousand, fifty-two".