2012134433140 has 24 divisors (see below), whose sum is σ = 4550519410920. Its totient is φ = 742941944448.

The previous prime is 2012134433117. The next prime is 2012134433143. The reversal of 2012134433140 is 413344312102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63128572516 + 1949005860624 = 251254^2 + 1396068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2012134433099 and 2012134433108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012134433143) 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, 3869489035 + ... + 3869489554.

It is an arithmetic number, because the mean of its divisors is an integer number (189604975455).

Almost surely, 2^{2012134433140} is an apocalyptic number.

2012134433140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012134433140 is an abundant number, since it is smaller than the sum of its proper divisors (2538384977780).

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

2012134433140 is a wasteful number, since it uses less digits than its factorization.

2012134433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738978611 (or 7738978609 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2012134433140 its reverse (413344312102), we get a palindrome (2425478745242).

The spelling of 2012134433140 in words is "two trillion, twelve billion, one hundred thirty-four million, four hundred thirty-three thousand, one hundred forty".