1202405011957 has 2 divisors, whose sum is σ = 1202405011958. Its totient is φ = 1202405011956.

The previous prime is 1202405011943. The next prime is 1202405012093. The reversal of 1202405011957 is 7591105042021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1114557387076 + 87847624881 = 1055726^2 + 296391^2 .

It is an emirp because it is prime and its reverse (7591105042021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202405011957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202405011937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601202505978 + 601202505979.

It is an arithmetic number, because the mean of its divisors is an integer number (601202505979).

Almost surely, 2^{1202405011957} is an apocalyptic number.

It is an amenable number.

1202405011957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202405011957 is an equidigital number, since it uses as much as digits as its factorization.

1202405011957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 1202405011957 in words is "one trillion, two hundred two billion, four hundred five million, eleven thousand, nine hundred fifty-seven".