129865242203 has 8 divisors (see below), whose sum is σ = 131028046848. Its totient is φ = 128702675584.

The previous prime is 129865242197. The next prime is 129865242251. The reversal of 129865242203 is 302242568921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129865242203 - 2¹⁸ = 129864980059 is a prime.

It is a super-2 number, since 2×129865242203² (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 (129865242103) 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, 1145126 + ... + 1253412.

It is an arithmetic number, because the mean of its divisors is an integer number (16378505856).

Almost surely, 2^129865242203 is an apocalyptic number.

129865242203 is a deficient number, since it is larger than the sum of its proper divisors (1162804645).

129865242203 is a wasteful number, since it uses less digits than its factorization.

129865242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119013.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 129865242203 in words is "one hundred twenty-nine billion, eight hundred sixty-five million, two hundred forty-two thousand, two hundred three".