1403324217961 has 2 divisors, whose sum is σ = 1403324217962. Its totient is φ = 1403324217960.

The previous prime is 1403324217941. The next prime is 1403324218007. The reversal of 1403324217961 is 1697124233041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978912360000 + 424411857961 = 989400^2 + 651469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1403324217961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1403324217941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701662108980 + 701662108981.

It is an arithmetic number, because the mean of its divisors is an integer number (701662108981).

Almost surely, 2^{1403324217961} is an apocalyptic number.

It is an amenable number.

1403324217961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403324217961 is an equidigital number, since it uses as much as digits as its factorization.

1403324217961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 1403324217961 in words is "one trillion, four hundred three billion, three hundred twenty-four million, two hundred seventeen thousand, nine hundred sixty-one".