201511034345 has 8 divisors (see below), whose sum is σ = 241882017864. Its totient is φ = 161162976384.

The previous prime is 201511034341. The next prime is 201511034363. The reversal of 201511034345 is 543430115102.

It can be written as a sum of positive squares in 4 ways, for example, as 132469793296 + 69041241049 = 363964^2 + 262757^2 .

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 201511034345 - 2² = 201511034341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201511034341) 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, 5712044 + ... + 5747213.

It is an arithmetic number, because the mean of its divisors is an integer number (30235252233).

Almost surely, 2^201511034345 is an apocalyptic number.

It is an amenable number.

201511034345 is a deficient number, since it is larger than the sum of its proper divisors (40370983519).

201511034345 is a wasteful number, since it uses less digits than its factorization.

201511034345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11462779.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 201511034345 its reverse (543430115102), we get a palindrome (744941149447).

The spelling of 201511034345 in words is "two hundred one billion, five hundred eleven million, thirty-four thousand, three hundred forty-five".