83121122436530 has 16 divisors (see below), whose sum is σ = 152153919037440. Its totient is φ = 32684915940912.

The previous prime is 83121122436487. The next prime is 83121122436557. The reversal of 83121122436530 is 3563422112138.

It is a super-2 number, since 2×83121122436530² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70441628594 + ... + 70441629773.

It is an arithmetic number, because the mean of its divisors is an integer number (9509619939840).

Almost surely, 2^{83121122436530} is an apocalyptic number.

83121122436530 is a deficient number, since it is larger than the sum of its proper divisors (69032796600910).

83121122436530 is a wasteful number, since it uses less digits than its factorization.

83121122436530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140883258433.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 83121122436530 its reverse (3563422112138), we get a palindrome (86684544548668).

The spelling of 83121122436530 in words is "eighty-three trillion, one hundred twenty-one billion, one hundred twenty-two million, four hundred thirty-six thousand, five hundred thirty".