10231021012 has 12 divisors (see below), whose sum is σ = 18521676180. Its totient is φ = 4939113536.

The previous prime is 10231021001. The next prime is 10231021019. The reversal of 10231021012 is 21012013201.

It can be written as a sum of positive squares in 2 ways, for example, as 7431129616 + 2799891396 = 86204^2 + 52914^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10231020983 and 10231021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231021019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44099113 + ... + 44099344.

It is an arithmetic number, because the mean of its divisors is an integer number (1543473015).

Almost surely, 2^10231021012 is an apocalyptic number.

It is an amenable number.

10231021012 is a deficient number, since it is larger than the sum of its proper divisors (8290655168).

10231021012 is a wasteful number, since it uses less digits than its factorization.

10231021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88198490 (or 88198488 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10231021012 its reverse (21012013201), we get a palindrome (31243034213).

The spelling of 10231021012 in words is "ten billion, two hundred thirty-one million, twenty-one thousand, twelve".