201011423945 has 8 divisors (see below), whose sum is σ = 245168032200. Its totient is φ = 158172923520.

The previous prime is 201011423941. The next prime is 201011423957. The reversal of 201011423945 is 549324110102.

It can be written as a sum of positive squares in 4 ways, for example, as 682672384 + 200328751561 = 26128^2 + 447581^2 .

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

It is not a de Polignac number, because 201011423945 - 2² = 201011423941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201011423941) 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, 329526620 + ... + 329527229.

It is an arithmetic number, because the mean of its divisors is an integer number (30646004025).

Almost surely, 2^201011423945 is an apocalyptic number.

It is an amenable number.

201011423945 is a deficient number, since it is larger than the sum of its proper divisors (44156608255).

201011423945 is an equidigital number, since it uses as much as digits as its factorization.

201011423945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659053915.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 201011423945 in words is "two hundred one billion, eleven million, four hundred twenty-three thousand, nine hundred forty-five".