134212423240 has 128 divisors (see below), whose sum is σ = 346524687360. Its totient is φ = 45828566784.

The previous prime is 134212423211. The next prime is 134212423297. The reversal of 134212423240 is 42324212431.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 134212423199 and 134212423208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104607639 + ... + 104608921.

It is an arithmetic number, because the mean of its divisors is an integer number (2707224120).

Almost surely, 2^134212423240 is an apocalyptic number.

134212423240 is a gapful number since it is divisible by the number (10) 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 134212423240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173262343680).

134212423240 is an abundant number, since it is smaller than the sum of its proper divisors (212312264120).

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

134212423240 is a wasteful number, since it uses less digits than its factorization.

134212423240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 134212423240 its reverse (42324212431), we get a palindrome (176536635671).

The spelling of 134212423240 in words is "one hundred thirty-four billion, two hundred twelve million, four hundred twenty-three thousand, two hundred forty".