1121464439257 has 2 divisors, whose sum is σ = 1121464439258. Its totient is φ = 1121464439256.

The previous prime is 1121464439201. The next prime is 1121464439317. The reversal of 1121464439257 is 7529344641211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110966592576 + 10497846681 = 1054024^2 + 102459^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121464439257 - 2¹¹ = 1121464437209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121464439257.

It is not a weakly prime, because it can be changed into another prime (1121464434257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560732219628 + 560732219629.

It is an arithmetic number, because the mean of its divisors is an integer number (560732219629).

Almost surely, 2^{1121464439257} is an apocalyptic number.

It is an amenable number.

1121464439257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121464439257 is an equidigital number, since it uses as much as digits as its factorization.

1121464439257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The spelling of 1121464439257 in words is "one trillion, one hundred twenty-one billion, four hundred sixty-four million, four hundred thirty-nine thousand, two hundred fifty-seven".