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20200012020101 = 31651613290971
BaseRepresentation
bin1001001011111001011101…
…00010100111100110000101
32122112002202120100212122002
410211330232202213212011
510121424111034120401
6110543431333515045
74153255062110624
oct445745642474605
978462676325562
1020200012020101
116488860199101
122322a931a2a85
13b36b11c510a4
144db985b8b6bb
152506ae3d1a6b
hex125f2e8a7985

20200012020101 has 4 divisors (see below), whose sum is σ = 20851625311104. Its totient is φ = 19548398729100.

The previous prime is 20200012020031. The next prime is 20200012020131. The reversal of 20200012020101 is 10102021000202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20200012020101 is a prime.

It is a super-2 number, since 2×202000120201012 (a number of 27 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 (20200012020131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325806645455 + ... + 325806645516.

It is an arithmetic number, because the mean of its divisors is an integer number (5212906327776).

Almost surely, 220200012020101 is an apocalyptic number.

It is an amenable number.

20200012020101 is a deficient number, since it is larger than the sum of its proper divisors (651613291003).

20200012020101 is an equidigital number, since it uses as much as digits as its factorization.

20200012020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651613291002.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20200012020101 its reverse (10102021000202), we get a palindrome (30302033020303).

The spelling of 20200012020101 in words is "twenty trillion, two hundred billion, twelve million, twenty thousand, one hundred one".

Divisors: 1 31 651613290971 20200012020101