13421155304 has 8 divisors (see below), whose sum is σ = 25164666210. Its totient is φ = 6710577648.

The previous prime is 13421155301. The next prime is 13421155309. The reversal of 13421155304 is 40355112431.

It can be written as a sum of positive squares in only one way, i.e., 12254932804 + 1166222500 = 110702^2 + 34150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13421155301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838822199 + ... + 838822214.

Almost surely, 2^13421155304 is an apocalyptic number.

It is an amenable number.

13421155304 is a deficient number, since it is larger than the sum of its proper divisors (11743510906).

13421155304 is a wasteful number, since it uses less digits than its factorization.

13421155304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677644419 (or 1677644415 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 13421155304 its reverse (40355112431), we get a palindrome (53776267735).

The spelling of 13421155304 in words is "thirteen billion, four hundred twenty-one million, one hundred fifty-five thousand, three hundred four".