134155320341421 has 32 divisors (see below), whose sum is σ = 189531464693760. Its totient is φ = 84171826463616.

The previous prime is 134155320341387. The next prime is 134155320341461. The reversal of 134155320341421 is 124143023551431.

It is not a de Polignac number, because 134155320341421 - 2³¹ = 134153172857773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134155320341421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134155320341461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5430741 + ... + 17256986.

It is an arithmetic number, because the mean of its divisors is an integer number (5922858271680).

Almost surely, 2^{134155320341421} is an apocalyptic number.

It is an amenable number.

134155320341421 is a deficient number, since it is larger than the sum of its proper divisors (55376144352339).

134155320341421 is a wasteful number, since it uses less digits than its factorization.

134155320341421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22688433.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 134155320341421 its reverse (124143023551431), we get a palindrome (258298343892852).

The spelling of 134155320341421 in words is "one hundred thirty-four trillion, one hundred fifty-five billion, three hundred twenty million, three hundred forty-one thousand, four hundred twenty-one".