157121607011 has 2 divisors, whose sum is σ = 157121607012. Its totient is φ = 157121607010.

The previous prime is 157121606953. The next prime is 157121607061. The reversal of 157121607011 is 110706121751.

157121607011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157121607011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (157121607061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78560803505 + 78560803506.

It is an arithmetic number, because the mean of its divisors is an integer number (78560803506).

Almost surely, 2^157121607011 is an apocalyptic number.

157121607011 is a deficient number, since it is larger than the sum of its proper divisors (1).

157121607011 is an equidigital number, since it uses as much as digits as its factorization.

157121607011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 32.

Adding to 157121607011 its reverse (110706121751), we get a palindrome (267827728762).

The spelling of 157121607011 in words is "one hundred fifty-seven billion, one hundred twenty-one million, six hundred seven thousand, eleven".