201823132945 has 32 divisors (see below), whose sum is σ = 292572979200. Its totient is φ = 130560486336.

The previous prime is 201823132943. The next prime is 201823132963. The reversal of 201823132945 is 549231328102.

It is not a de Polignac number, because 201823132945 - 2¹ = 201823132943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201823132898 and 201823132907.

It is not an unprimeable number, because it can be changed into a prime (201823132943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475989 + ... + 793858.

It is an arithmetic number, because the mean of its divisors is an integer number (9142905600).

Almost surely, 2^201823132945 is an apocalyptic number.

It is an amenable number.

201823132945 is a deficient number, since it is larger than the sum of its proper divisors (90749846255).

201823132945 is a wasteful number, since it uses less digits than its factorization.

201823132945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270117.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 201823132945 in words is "two hundred one billion, eight hundred twenty-three million, one hundred thirty-two thousand, nine hundred forty-five".