2051020231 has 8 divisors (see below), whose sum is σ = 2230661664. Its totient is φ = 1874503200.

The previous prime is 2051020229. The next prime is 2051020243. The reversal of 2051020231 is 1320201502.

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 2051020231 - 2¹ = 2051020229 is a prime.

It is a super-2 number, since 2×2051020231² = 8413367975942586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051020201) 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, 779731 + ... + 782356.

It is an arithmetic number, because the mean of its divisors is an integer number (278832708).

Almost surely, 2^2051020231 is an apocalyptic number.

2051020231 is a deficient number, since it is larger than the sum of its proper divisors (179641433).

2051020231 is a wasteful number, since it uses less digits than its factorization.

2051020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562201.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2051020231 is about 45288.1908558953. The cubic root of 2051020231 is about 1270.5447950945.

Adding to 2051020231 its reverse (1320201502), we get a palindrome (3371221733).

The spelling of 2051020231 in words is "two billion, fifty-one million, twenty thousand, two hundred thirty-one".