83121202000037 has 4 divisors (see below), whose sum is σ = 83551881803340. Its totient is φ = 82690522196736.

The previous prime is 83121202000021. The next prime is 83121202000103. The reversal of 83121202000037 is 73000020212138.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14293836156961 + 68827365843076 = 3780719^2 + 8296226^2 .

It is a cyclic number.

It is not a de Polignac number, because 83121202000037 - 2⁴ = 83121202000021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83121201999973 and 83121202000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83121202000637) 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, 215339901362 + ... + 215339901747.

It is an arithmetic number, because the mean of its divisors is an integer number (20887970450835).

Almost surely, 2^{83121202000037} is an apocalyptic number.

It is an amenable number.

83121202000037 is a deficient number, since it is larger than the sum of its proper divisors (430679803303).

83121202000037 is a wasteful number, since it uses less digits than its factorization.

83121202000037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430679803302.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 83121202000037 in words is "eighty-three trillion, one hundred twenty-one billion, two hundred two million, thirty-seven", and thus it is an aban number.