121231451041 has 2 divisors, whose sum is σ = 121231451042. Its totient is φ = 121231451040.

The previous prime is 121231451009. The next prime is 121231451069. The reversal of 121231451041 is 140154132121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120561728400 + 669722641 = 347220^2 + 25879^2 .

It is a cyclic number.

It is not a de Polignac number, because 121231451041 - 2⁵ = 121231451009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121231450997 and 121231451015.

It is not a weakly prime, because it can be changed into another prime (121231451441) 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, 60615725520 + 60615725521.

It is an arithmetic number, because the mean of its divisors is an integer number (60615725521).

Almost surely, 2^121231451041 is an apocalyptic number.

It is an amenable number.

121231451041 is a deficient number, since it is larger than the sum of its proper divisors (1).

121231451041 is an equidigital number, since it uses as much as digits as its factorization.

121231451041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 121231451041 its reverse (140154132121), we get a palindrome (261385583162).

The spelling of 121231451041 in words is "one hundred twenty-one billion, two hundred thirty-one million, four hundred fifty-one thousand, forty-one".