2047121020 has 72 divisors (see below), whose sum is σ = 5173338240. Its totient is φ = 677658240.

The previous prime is 2047120979. The next prime is 2047121023. The reversal of 2047121020 is 201217402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047121023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7596 + ... + 64435.

It is an arithmetic number, because the mean of its divisors is an integer number (71851920).

Almost surely, 2^2047121020 is an apocalyptic number.

2047121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2047121020 is an abundant number, since it is smaller than the sum of its proper divisors (3126217220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2047121020 is a wasteful number, since it uses less digits than its factorization.

2047121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72083 (or 72074 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2047121020 is about 45245.1215049755. The cubic root of 2047121020 is about 1269.7391366996.

Adding to 2047121020 its reverse (201217402), we get a palindrome (2248338422).

The spelling of 2047121020 in words is "two billion, forty-seven million, one hundred twenty-one thousand, twenty".