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202101300001 = 215899361309
BaseRepresentation
bin1011110000111000101…
…1010001101100100001
3201022122210020210012101
42330032023101230201
511302400413100001
6232502152130401
720413154464036
oct2741613215441
9638583223171
10202101300001
117878aa07a77
1233203396a01
131609a773963
1553ccb96a01
hex2f0e2d1b21

202101300001 has 4 divisors (see below), whose sum is σ = 202110682900. Its totient is φ = 202091917104.

The previous prime is 202101299987. The next prime is 202101300053. The reversal of 202101300001 is 100003101202.

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 94740224401 + 107361075600 = 307799^2 + 327660^2 .

It is a cyclic number.

It is not a de Polignac number, because 202101300001 - 229 = 201564429089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202101300061) 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, 4659066 + ... + 4702243.

It is an arithmetic number, because the mean of its divisors is an integer number (50527670725).

Almost surely, 2202101300001 is an apocalyptic number.

It is an amenable number.

202101300001 is a deficient number, since it is larger than the sum of its proper divisors (9382899).

202101300001 is an equidigital number, since it uses as much as digits as its factorization.

202101300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9382898.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 202101300001 its reverse (100003101202), we get a palindrome (302104401203).

The spelling of 202101300001 in words is "two hundred two billion, one hundred one million, three hundred thousand, one".

Divisors: 1 21589 9361309 202101300001