134123011421 has 16 divisors (see below), whose sum is σ = 156217420800. Its totient is φ = 112763259648.

The previous prime is 134123011339. The next prime is 134123011457. The reversal of 134123011421 is 124110321431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134123011421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134123011721) 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, 1396340 + ... + 1489298.

It is an arithmetic number, because the mean of its divisors is an integer number (9763588800).

Almost surely, 2^134123011421 is an apocalyptic number.

It is an amenable number.

134123011421 is a deficient number, since it is larger than the sum of its proper divisors (22094409379).

134123011421 is an equidigital number, since it uses as much as digits as its factorization.

134123011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96908.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 134123011421 its reverse (124110321431), we get a palindrome (258233332852).

The spelling of 134123011421 in words is "one hundred thirty-four billion, one hundred twenty-three million, eleven thousand, four hundred twenty-one".