1030131023021 has 4 divisors (see below), whose sum is σ = 1044242406972. Its totient is φ = 1016019639072.

The previous prime is 1030131023003. The next prime is 1030131023057. The reversal of 1030131023021 is 1203201310301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 328455072100 + 701675950921 = 573110^2 + 837661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030131023021 - 2¹⁸ = 1030130760877 is a prime.

It is a super-2 number, since 2×1030131023021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030131023821) 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, 7055691866 + ... + 7055692011.

It is an arithmetic number, because the mean of its divisors is an integer number (261060601743).

Almost surely, 2^{1030131023021} is an apocalyptic number.

It is an amenable number.

1030131023021 is a deficient number, since it is larger than the sum of its proper divisors (14111383951).

1030131023021 is an equidigital number, since it uses as much as digits as its factorization.

1030131023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14111383950.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1030131023021 its reverse (1203201310301), we get a palindrome (2233332333322).

The spelling of 1030131023021 in words is "one trillion, thirty billion, one hundred thirty-one million, twenty-three thousand, twenty-one".