83138561230 has 16 divisors (see below), whose sum is σ = 149946933024. Its totient is φ = 33189308320.

The previous prime is 83138561197. The next prime is 83138561237. The reversal of 83138561230 is 3216583138.

It is a super-2 number, since 2×83138561230² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83138561237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8259241 + ... + 8269300.

It is an arithmetic number, because the mean of its divisors is an integer number (9371683314).

Almost surely, 2^83138561230 is an apocalyptic number.

83138561230 is a deficient number, since it is larger than the sum of its proper divisors (66808371794).

83138561230 is a wasteful number, since it uses less digits than its factorization.

83138561230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529051.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 83138561230 in words is "eighty-three billion, one hundred thirty-eight million, five hundred sixty-one thousand, two hundred thirty".