2011151550523 has 2 divisors, whose sum is σ = 2011151550524. Its totient is φ = 2011151550522.

The previous prime is 2011151550521. The next prime is 2011151550553. The reversal of 2011151550523 is 3250551511102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011151550523 - 2¹ = 2011151550521 is a prime.

Together with 2011151550521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2011151550521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005575775261 + 1005575775262.

It is an arithmetic number, because the mean of its divisors is an integer number (1005575775262).

Almost surely, 2^{2011151550523} is an apocalyptic number.

2011151550523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011151550523 is an equidigital number, since it uses as much as digits as its factorization.

2011151550523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 2011151550523 in words is "two trillion, eleven billion, one hundred fifty-one million, five hundred fifty thousand, five hundred twenty-three".