38403021131 has 4 divisors (see below), whose sum is σ = 40662022392. Its totient is φ = 36144019872.

The previous prime is 38403021119. The next prime is 38403021157. The reversal of 38403021131 is 13112030483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13112030483 = 3989 ⋅3287047.

It is not a de Polignac number, because 38403021131 - 2⁶ = 38403021067 is a prime.

It is a super-2 number, since 2×38403021131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38403021131.

It is not an unprimeable number, because it can be changed into a prime (38403021431) 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, 1129500605 + ... + 1129500638.

It is an arithmetic number, because the mean of its divisors is an integer number (10165505598).

Almost surely, 2^38403021131 is an apocalyptic number.

38403021131 is a deficient number, since it is larger than the sum of its proper divisors (2259001261).

38403021131 is a wasteful number, since it uses less digits than its factorization.

38403021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259001260.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 38403021131 in words is "thirty-eight billion, four hundred three million, twenty-one thousand, one hundred thirty-one".