1021231010 has 8 divisors (see below), whose sum is σ = 1838215836. Its totient is φ = 408492400.

The previous prime is 1021230997. The next prime is 1021231049. The reversal of 1021231010 is 101321201.

It can be written as a sum of positive squares in 2 ways, for example, as 876100801 + 145130209 = 29599^2 + 12047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021230982 and 1021231000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51061541 + ... + 51061560.

Almost surely, 2^1021231010 is an apocalyptic number.

1021231010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021231010 is a deficient number, since it is larger than the sum of its proper divisors (816984826).

1021231010 is a wasteful number, since it uses less digits than its factorization.

1021231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102123108.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1021231010 is about 31956.7052431880. The cubic root of 1021231010 is about 1007.0275018646.

Adding to 1021231010 its reverse (101321201), we get a palindrome (1122552211).

The spelling of 1021231010 in words is "one billion, twenty-one million, two hundred thirty-one thousand, ten".