1020517372244 has 48 divisors (see below), whose sum is σ = 1821040513488. Its totient is φ = 500321353728.

The previous prime is 1020517372243. The next prime is 1020517372253. The reversal of 1020517372244 is 4422737150201.

It can be written as a sum of positive squares in 8 ways, for example, as 370075122244 + 650442250000 = 608338^2 + 806500^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020517372198 and 1020517372207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020517372243) 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, 198040772 + ... + 198045924.

It is an arithmetic number, because the mean of its divisors is an integer number (37938344031).

Almost surely, 2^{1020517372244} is an apocalyptic number.

It is an amenable number.

1020517372244 is a deficient number, since it is larger than the sum of its proper divisors (800523141244).

1020517372244 is a wasteful number, since it uses less digits than its factorization.

1020517372244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9884 (or 9882 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 1020517372244 in words is "one trillion, twenty billion, five hundred seventeen million, three hundred seventy-two thousand, two hundred forty-four".