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2021000211929 is a prime number
BaseRepresentation
bin11101011010001100111…
…111111110110111011001
321011012112222110011001002
4131122030333332313121
5231103002023240204
64144233520234345
7266004161234516
oct35321477766731
97135488404032
102021000211929
1170a112a28936
12287824a6b9b5
1311876c22178a
146db6193a30d
153788696c91e
hex1d68cffedd9

2021000211929 has 2 divisors, whose sum is σ = 2021000211930. Its totient is φ = 2021000211928.

The previous prime is 2021000211911. The next prime is 2021000211961. The reversal of 2021000211929 is 9291120001202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1381384154329 + 639616057600 = 1175323^2 + 799760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021000211929 - 28 = 2021000211673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2021000211029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010500105964 + 1010500105965.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500105965).

Almost surely, 22021000211929 is an apocalyptic number.

It is an amenable number.

2021000211929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021000211929 is an equidigital number, since it uses as much as digits as its factorization.

2021000211929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 2021000211929 in words is "two trillion, twenty-one billion, two hundred eleven thousand, nine hundred twenty-nine".