5101231021 has 16 divisors (see below), whose sum is σ = 5481489024. Its totient is φ = 4730033664.

The previous prime is 5101231013. The next prime is 5101231027. The reversal of 5101231021 is 1201321015.

It is a cyclic number.

It is not a de Polignac number, because 5101231021 - 2³ = 5101231013 is a prime.

It is a super-2 number, since 2×5101231021² = 52045115859225404882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5101230986 and 5101231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5101231027) 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, 1471336 + ... + 1474798.

It is an arithmetic number, because the mean of its divisors is an integer number (342593064).

Almost surely, 2^5101231021 is an apocalyptic number.

It is an amenable number.

5101231021 is a deficient number, since it is larger than the sum of its proper divisors (380258003).

5101231021 is a wasteful number, since it uses less digits than its factorization.

5101231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 5101231021 is about 71422.9026363393. The cubic root of 5101231021 is about 1721.4391035201.

Adding to 5101231021 its reverse (1201321015), we get a palindrome (6302552036).

The spelling of 5101231021 in words is "five billion, one hundred one million, two hundred thirty-one thousand, twenty-one".