38720451141213 has 4 divisors (see below), whose sum is σ = 51627268188288. Its totient is φ = 25813634094140.

The previous prime is 38720451141209. The next prime is 38720451141247. The reversal of 38720451141213 is 31214115402783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38720451141213 - 2² = 38720451141209 is a prime.

It is a super-2 number, since 2×38720451141213² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720451141293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6453408523533 + ... + 6453408523538.

It is an arithmetic number, because the mean of its divisors is an integer number (12906817047072).

Almost surely, 2^{38720451141213} is an apocalyptic number.

It is an amenable number.

38720451141213 is a deficient number, since it is larger than the sum of its proper divisors (12906817047075).

38720451141213 is a wasteful number, since it uses less digits than its factorization.

38720451141213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12906817047074.

The product of its (nonzero) digits is 161280, while the sum is 42.

Adding to 38720451141213 its reverse (31214115402783), we get a palindrome (69934566543996).

The spelling of 38720451141213 in words is "thirty-eight trillion, seven hundred twenty billion, four hundred fifty-one million, one hundred forty-one thousand, two hundred thirteen".