2311021025 has 48 divisors (see below), whose sum is σ = 3085040640. Its totient is φ = 1713096000.

The previous prime is 2311020967. The next prime is 2311021033. The reversal of 2311021025 is 5201201132.

It is a happy number.

It is not a de Polignac number, because 2311021025 - 2⁸ = 2311020769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311020994 and 2311021012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3733166 + ... + 3733784.

It is an arithmetic number, because the mean of its divisors is an integer number (64271680).

Almost surely, 2^2311021025 is an apocalyptic number.

2311021025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2311021025 is a deficient number, since it is larger than the sum of its proper divisors (774019615).

2311021025 is a wasteful number, since it uses less digits than its factorization.

2311021025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2311021025 is about 48073.0800448650. The cubic root of 2311021025 is about 1322.1111429007. Note that the first 4 decimals are identical.

Adding to 2311021025 its reverse (5201201132), we get a palindrome (7512222157).

The spelling of 2311021025 in words is "two billion, three hundred eleven million, twenty-one thousand, twenty-five".