1031210030021 has 8 divisors (see below), whose sum is σ = 1031812214400. Its totient is φ = 1030608023200.

The previous prime is 1031210029963. The next prime is 1031210030099. The reversal of 1031210030021 is 1200300121301.

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

It is a cyclic number.

It is not a de Polignac number, because 1031210030021 - 2³⁰ = 1030136288197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031210029978 and 1031210030005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031210000021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12604196 + ... + 12685746.

It is an arithmetic number, because the mean of its divisors is an integer number (128976526800).

Almost surely, 2^{1031210030021} is an apocalyptic number.

It is an amenable number.

1031210030021 is a deficient number, since it is larger than the sum of its proper divisors (602184379).

1031210030021 is an equidigital number, since it uses as much as digits as its factorization.

1031210030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88779.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1031210030021 its reverse (1200300121301), we get a palindrome (2231510151322).

The spelling of 1031210030021 in words is "one trillion, thirty-one billion, two hundred ten million, thirty thousand, twenty-one".