384511213511131 has 16 divisors (see below), whose sum is σ = 448794236021760. Its totient is φ = 322566498051840.

The previous prime is 384511213511093. The next prime is 384511213511143. The reversal of 384511213511131 is 131115312115483.

It is not a de Polignac number, because 384511213511131 - 2¹⁵ = 384511213478363 is a prime.

It is a super-2 number, since 2×384511213511131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384511213511171) 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, 45766840 + ... + 53512858.

It is an arithmetic number, because the mean of its divisors is an integer number (28049639751360).

Almost surely, 2^{384511213511131} is an apocalyptic number.

384511213511131 is a deficient number, since it is larger than the sum of its proper divisors (64283022510629).

384511213511131 is a wasteful number, since it uses less digits than its factorization.

384511213511131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896954.

The product of its digits is 43200, while the sum is 40.

The spelling of 384511213511131 in words is "three hundred eighty-four trillion, five hundred eleven billion, two hundred thirteen million, five hundred eleven thousand, one hundred thirty-one".