3251012530021 has 16 divisors (see below), whose sum is σ = 3355105244400. Its totient is φ = 3148672370688.

The previous prime is 3251012530013. The next prime is 3251012530039. The reversal of 3251012530021 is 1200352101523.

It can be written as a sum of positive squares in 8 ways, for example, as 363561967521 + 2887450562500 = 602961^2 + 1699250^2 .

It is not a de Polignac number, because 3251012530021 - 2³ = 3251012530013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3251012530081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187035 + ... + 2812663.

It is an arithmetic number, because the mean of its divisors is an integer number (209694077775).

Almost surely, 2^{3251012530021} is an apocalyptic number.

It is an amenable number.

3251012530021 is a deficient number, since it is larger than the sum of its proper divisors (104092714379).

3251012530021 is a wasteful number, since it uses less digits than its factorization.

3251012530021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626168.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 3251012530021 its reverse (1200352101523), we get a palindrome (4451364631544).

The spelling of 3251012530021 in words is "three trillion, two hundred fifty-one billion, twelve million, five hundred thirty thousand, twenty-one".