2061321031 has 20 divisors (see below), whose sum is σ = 2591487760. Its totient is φ = 1606144320.

The previous prime is 2061321013. The next prime is 2061321047. The reversal of 2061321031 is 1301231602.

It is not a de Polignac number, because 2061321031 - 2⁵ = 2061320999 is a prime.

It is a super-2 number, since 2×2061321031² = 8498088785685805922, 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 (2061321631) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92431 + ... + 112543.

It is an arithmetic number, because the mean of its divisors is an integer number (129574388).

Almost surely, 2^2061321031 is an apocalyptic number.

2061321031 is a deficient number, since it is larger than the sum of its proper divisors (530166729).

2061321031 is an frugal number, since it uses more digits than its factorization.

2061321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20164 (or 20131 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2061321031 is about 45401.7734345257. The cubic root of 2061321031 is about 1272.6682551887.

Adding to 2061321031 its reverse (1301231602), we get a palindrome (3362552633).

The spelling of 2061321031 in words is "two billion, sixty-one million, three hundred twenty-one thousand, thirty-one".