2047231420921 has 8 divisors (see below), whose sum is σ = 2098368542088. Its totient is φ = 1996151664000.

The previous prime is 2047231420919. The next prime is 2047231420943. The reversal of 2047231420921 is 1290241327402.

It can be written as a sum of positive squares in 4 ways, for example, as 1862354025 + 2045369066896 = 43155^2 + 1430164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2047231420921 - 2¹ = 2047231420919 is a prime.

It is a super-3 number, since 3×2047231420921³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2047231420901) 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, 14268790 + ... + 14411551.

It is an arithmetic number, because the mean of its divisors is an integer number (262296067761).

Almost surely, 2^{2047231420921} is an apocalyptic number.

It is an amenable number.

2047231420921 is a deficient number, since it is larger than the sum of its proper divisors (51137121167).

2047231420921 is a wasteful number, since it uses less digits than its factorization.

2047231420921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28682123.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 2047231420921 in words is "two trillion, forty-seven billion, two hundred thirty-one million, four hundred twenty thousand, nine hundred twenty-one".