545212111311 has 24 divisors (see below), whose sum is σ = 900167542560. Its totient is φ = 311503098816.

The previous prime is 545212111253. The next prime is 545212111313. The reversal of 545212111311 is 113111212545.

545212111311 is a `hidden beast` number, since 5 + 4 + 521 + 2 + 1 + 1 + 131 + 1 = 666.

It is not a de Polignac number, because 545212111311 - 2²¹ = 545210014159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545212111313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222300 + ... + 1067633.

It is an arithmetic number, because the mean of its divisors is an integer number (37506980940).

Almost surely, 2^545212111311 is an apocalyptic number.

545212111311 is a deficient number, since it is larger than the sum of its proper divisors (354955431249).

545212111311 is a wasteful number, since it uses less digits than its factorization.

545212111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296655 (or 1296652 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

Adding to 545212111311 its reverse (113111212545), we get a palindrome (658323323856).

The spelling of 545212111311 in words is "five hundred forty-five billion, two hundred twelve million, one hundred eleven thousand, three hundred eleven".