21030300900131 has 2 divisors, whose sum is σ = 21030300900132. Its totient is φ = 21030300900130.

The previous prime is 21030300900121. The next prime is 21030300900151. The reversal of 21030300900131 is 13100900303012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21030300900131 is a prime.

It is a super-2 number, since 2×21030300900131² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 21030300900097 and 21030300900106.

It is not a weakly prime, because it can be changed into another prime (21030300900121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515150450065 + 10515150450066.

It is an arithmetic number, because the mean of its divisors is an integer number (10515150450066).

Almost surely, 2^{21030300900131} is an apocalyptic number.

21030300900131 is a deficient number, since it is larger than the sum of its proper divisors (1).

21030300900131 is an equidigital number, since it uses as much as digits as its factorization.

21030300900131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 21030300900131 in words is "twenty-one trillion, thirty billion, three hundred million, nine hundred thousand, one hundred thirty-one".