1353123020515 has 32 divisors (see below), whose sum is σ = 1965442437504. Its totient is φ = 873022095360.

The previous prime is 1353123020489. The next prime is 1353123020527. The reversal of 1353123020515 is 5150203213531.

It is a de Polignac number, because none of the positive numbers 2^k-1353123020515 is a prime.

It is a super-2 number, since 2×1353123020515² (a number of 25 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 1727995 + ... + 2385835.

It is an arithmetic number, because the mean of its divisors is an integer number (61420076172).

Almost surely, 2^{1353123020515} is an apocalyptic number.

1353123020515 is a deficient number, since it is larger than the sum of its proper divisors (612319416989).

1353123020515 is a wasteful number, since it uses less digits than its factorization.

1353123020515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661327.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 1353123020515 in words is "one trillion, three hundred fifty-three billion, one hundred twenty-three million, twenty thousand, five hundred fifteen".