612131211060 has 96 divisors (see below), whose sum is σ = 1731522610944. Its totient is φ = 161564160000.

The previous prime is 612131211047. The next prime is 612131211061. The reversal of 612131211060 is 60112131216.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 612131211060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612131211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19806820 + ... + 19837700.

It is an arithmetic number, because the mean of its divisors is an integer number (18036693864).

Almost surely, 2^612131211060 is an apocalyptic number.

612131211060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612131211060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865761305472).

612131211060 is an abundant number, since it is smaller than the sum of its proper divisors (1119391399884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612131211060 is a wasteful number, since it uses less digits than its factorization.

612131211060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34265 (or 34263 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 612131211060 its reverse (60112131216), we get a palindrome (672243342276).

The spelling of 612131211060 in words is "six hundred twelve billion, one hundred thirty-one million, two hundred eleven thousand, sixty".