143117012987 has 4 divisors (see below), whose sum is σ = 154126014000. Its totient is φ = 132108011976.

The previous prime is 143117012981. The next prime is 143117012999. The reversal of 143117012987 is 789210711341.

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

It is a cyclic number.

It is not a de Polignac number, because 143117012987 - 2³⁴ = 125937143803 is a prime.

It is a super-2 number, since 2×143117012987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143117012981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5504500487 + ... + 5504500512.

It is an arithmetic number, because the mean of its divisors is an integer number (38531503500).

Almost surely, 2^143117012987 is an apocalyptic number.

143117012987 is a deficient number, since it is larger than the sum of its proper divisors (11009001013).

143117012987 is a wasteful number, since it uses less digits than its factorization.

143117012987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009001012.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 143117012987 in words is "one hundred forty-three billion, one hundred seventeen million, twelve thousand, nine hundred eighty-seven".