1291103298142 has 16 divisors (see below), whose sum is σ = 2213356272480. Its totient is φ = 553320901728.

The previous prime is 1291103298119. The next prime is 1291103298143. The reversal of 1291103298142 is 2418923011921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291103298143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165108 + ... + 1615384.

It is an arithmetic number, because the mean of its divisors is an integer number (138334767030).

Almost surely, 2^{1291103298142} is an apocalyptic number.

1291103298142 is a deficient number, since it is larger than the sum of its proper divisors (922252974338).

1291103298142 is a wasteful number, since it uses less digits than its factorization.

1291103298142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513875.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 1291103298142 in words is "one trillion, two hundred ninety-one billion, one hundred three million, two hundred ninety-eight thousand, one hundred forty-two".