1202678950391 has 2 divisors, whose sum is σ = 1202678950392. Its totient is φ = 1202678950390.

The previous prime is 1202678950373. The next prime is 1202678950409. The reversal of 1202678950391 is 1930598762021.

It is a balanced prime because it is at equal distance from previous prime (1202678950373) and next prime (1202678950409).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202678950391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202678950691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601339475195 + 601339475196.

It is an arithmetic number, because the mean of its divisors is an integer number (601339475196).

Almost surely, 2^{1202678950391} is an apocalyptic number.

1202678950391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202678950391 is an equidigital number, since it uses as much as digits as its factorization.

1202678950391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 1202678950391 in words is "one trillion, two hundred two billion, six hundred seventy-eight million, nine hundred fifty thousand, three hundred ninety-one".