245311011523 has 16 divisors (see below), whose sum is σ = 252663947424. Its totient is φ = 238025514240.

The previous prime is 245311011493. The next prime is 245311011577. The reversal of 245311011523 is 325110113542.

It is a cyclic number.

It is not a de Polignac number, because 245311011523 - 2²¹ = 245308914371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245311011491 and 245311011500.

It is not an unprimeable number, because it can be changed into a prime (245311012523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9265861 + ... + 9292297.

It is an arithmetic number, because the mean of its divisors is an integer number (15791496714).

Almost surely, 2^245311011523 is an apocalyptic number.

245311011523 is a deficient number, since it is larger than the sum of its proper divisors (7352935901).

245311011523 is a wasteful number, since it uses less digits than its factorization.

245311011523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27702.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 245311011523 in words is "two hundred forty-five billion, three hundred eleven million, eleven thousand, five hundred twenty-three".