263236077121 has 2 divisors, whose sum is σ = 263236077122. Its totient is φ = 263236077120.

The previous prime is 263236077077. The next prime is 263236077131. The reversal of 263236077121 is 121770632362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157652673025 + 105583404096 = 397055^2 + 324936^2 .

It is a cyclic number.

It is not a de Polignac number, because 263236077121 - 2¹³ = 263236068929 is a prime.

It is not a weakly prime, because it can be changed into another prime (263236077131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131618038560 + 131618038561.

It is an arithmetic number, because the mean of its divisors is an integer number (131618038561).

Almost surely, 2^263236077121 is an apocalyptic number.

It is an amenable number.

263236077121 is a deficient number, since it is larger than the sum of its proper divisors (1).

263236077121 is an equidigital number, since it uses as much as digits as its factorization.

263236077121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 263236077121 in words is "two hundred sixty-three billion, two hundred thirty-six million, seventy-seven thousand, one hundred twenty-one".