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102020011111012 = 22156722517230709
BaseRepresentation
bin10111001100100101100010…
…100001011011001001100100
3111101020000110222121010221111
4113030211202201123021210
5101332443440321023022
61000551202431154404
730326462660241661
oct2714454241331144
9441200428533844
10102020011111012
112a563497685935
12b5381b3375a04
1344c05a44753b7
141b29b1b23aa68
15bbdb944b0477
hex5cc96285b264

102020011111012 has 24 divisors (see below), whose sum is σ = 178728342705920. Its totient is φ = 50954799276000.

The previous prime is 102020011110991. The next prime is 102020011111063. The reversal of 102020011111012 is 210111110020201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102020011110983 and 102020011111001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10493914 + ... + 17724622.

Almost surely, 2102020011111012 is an apocalyptic number.

It is an amenable number.

102020011111012 is a deficient number, since it is larger than the sum of its proper divisors (76708331594908).

102020011111012 is a wasteful number, since it uses less digits than its factorization.

102020011111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234531 (or 7234529 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102020011111012 its reverse (210111110020201), we get a palindrome (312131121131213).

The spelling of 102020011111012 in words is "one hundred two trillion, twenty billion, eleven million, one hundred eleven thousand, twelve".

Divisors: 1 2 4 1567 2251 3134 4502 6268 9004 3527317 7054634 7230709 14109268 14461418 28922836 11330521003 16276325959 22661042006 32552651918 45322084012 65105303836 25505002777753 51010005555506 102020011111012