1293050120155 has 4 divisors (see below), whose sum is σ = 1551660144192. Its totient is φ = 1034440096120.

The previous prime is 1293050120099. The next prime is 1293050120183. The reversal of 1293050120155 is 5510210503921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1293050120155 - 2⁹ = 1293050119643 is a prime.

It is a super-2 number, since 2×1293050120155² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1293050120155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129305012011 + ... + 129305012020.

It is an arithmetic number, because the mean of its divisors is an integer number (387915036048).

Almost surely, 2^{1293050120155} is an apocalyptic number.

1293050120155 is a deficient number, since it is larger than the sum of its proper divisors (258610024037).

1293050120155 is an equidigital number, since it uses as much as digits as its factorization.

1293050120155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258610024036.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 1293050120155 in words is "one trillion, two hundred ninety-three billion, fifty million, one hundred twenty thousand, one hundred fifty-five".