203692431145 has 8 divisors (see below), whose sum is σ = 279349619904. Its totient is φ = 139674809904.

The previous prime is 203692431143. The next prime is 203692431211. The reversal of 203692431145 is 541134296302.

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

It is not a de Polignac number, because 203692431145 - 2¹ = 203692431143 is a prime.

It is a super-2 number, since 2×203692431145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203692431098 and 203692431107.

It is not an unprimeable number, because it can be changed into a prime (203692431143) 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, 2909891839 + ... + 2909891908.

It is an arithmetic number, because the mean of its divisors is an integer number (34918702488).

Almost surely, 2^203692431145 is an apocalyptic number.

It is an amenable number.

203692431145 is a deficient number, since it is larger than the sum of its proper divisors (75657188759).

203692431145 is an equidigital number, since it uses as much as digits as its factorization.

203692431145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819783759.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 203692431145 in words is "two hundred three billion, six hundred ninety-two million, four hundred thirty-one thousand, one hundred forty-five".