276400152121 has 2 divisors, whose sum is σ = 276400152122. Its totient is φ = 276400152120.

The previous prime is 276400152101. The next prime is 276400152139. The reversal of 276400152121 is 121251004672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229402681600 + 46997470521 = 478960^2 + 216789^2 .

It is a cyclic number.

It is not a de Polignac number, because 276400152121 - 2⁵ = 276400152089 is a prime.

It is not a weakly prime, because it can be changed into another prime (276400152101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138200076060 + 138200076061.

It is an arithmetic number, because the mean of its divisors is an integer number (138200076061).

Almost surely, 2^276400152121 is an apocalyptic number.

It is an amenable number.

276400152121 is a deficient number, since it is larger than the sum of its proper divisors (1).

276400152121 is an equidigital number, since it uses as much as digits as its factorization.

276400152121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 276400152121 its reverse (121251004672), we get a palindrome (397651156793).

The spelling of 276400152121 in words is "two hundred seventy-six billion, four hundred million, one hundred fifty-two thousand, one hundred twenty-one".