1203151083991 has 2 divisors, whose sum is σ = 1203151083992. Its totient is φ = 1203151083990.

The previous prime is 1203151083983. The next prime is 1203151084117. The reversal of 1203151083991 is 1993801513021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1203151083991 - 2³ = 1203151083983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203151083971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601575541995 + 601575541996.

It is an arithmetic number, because the mean of its divisors is an integer number (601575541996).

Almost surely, 2^{1203151083991} is an apocalyptic number.

1203151083991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203151083991 is an equidigital number, since it uses as much as digits as its factorization.

1203151083991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 1203151083991 in words is "one trillion, two hundred three billion, one hundred fifty-one million, eighty-three thousand, nine hundred ninety-one".