1143803371515 has 64 divisors (see below), whose sum is σ = 2106522949632. Its totient is φ = 519136128000.

The previous prime is 1143803371499. The next prime is 1143803371547. The reversal of 1143803371515 is 5151733083411.

It is not a de Polignac number, because 1143803371515 - 2⁴ = 1143803371499 is a prime.

It is a super-2 number, since 2×1143803371515² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30629055 + ... + 30666375.

It is an arithmetic number, because the mean of its divisors is an integer number (32914421088).

Almost surely, 2^{1143803371515} is an apocalyptic number.

1143803371515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143803371515 is a deficient number, since it is larger than the sum of its proper divisors (962719578117).

1143803371515 is a wasteful number, since it uses less digits than its factorization.

1143803371515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39420.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 1143803371515 in words is "one trillion, one hundred forty-three billion, eight hundred three million, three hundred seventy-one thousand, five hundred fifteen".