1030102300021 has 4 divisors (see below), whose sum is σ = 1030109436972. Its totient is φ = 1030095163072.

The previous prime is 1030102299871. The next prime is 1030102300069. The reversal of 1030102300021 is 1200032010301.

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 874759901796 + 155342398225 = 935286^2 + 394135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030102300021 - 2⁹ = 1030102299509 is a prime.

It is a super-2 number, since 2×1030102300021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030102299974 and 1030102300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030102700021) 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, 3347410 + ... + 3642163.

It is an arithmetic number, because the mean of its divisors is an integer number (257527359243).

Almost surely, 2^{1030102300021} is an apocalyptic number.

It is an amenable number.

1030102300021 is a deficient number, since it is larger than the sum of its proper divisors (7136951).

1030102300021 is an equidigital number, since it uses as much as digits as its factorization.

1030102300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136950.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1030102300021 its reverse (1200032010301), we get a palindrome (2230134310322).

The spelling of 1030102300021 in words is "one trillion, thirty billion, one hundred two million, three hundred thousand, twenty-one".