121452645311 has 2 divisors, whose sum is σ = 121452645312. Its totient is φ = 121452645310.

The previous prime is 121452645287. The next prime is 121452645343. The reversal of 121452645311 is 113546254121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121452645311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121452645361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60726322655 + 60726322656.

It is an arithmetic number, because the mean of its divisors is an integer number (60726322656).

Almost surely, 2^121452645311 is an apocalyptic number.

121452645311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121452645311 is an equidigital number, since it uses as much as digits as its factorization.

121452645311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

Adding to 121452645311 its reverse (113546254121), we get a palindrome (234998899432).

The spelling of 121452645311 in words is "one hundred twenty-one billion, four hundred fifty-two million, six hundred forty-five thousand, three hundred eleven".