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1201011111112 = 234743914594987
BaseRepresentation
bin10001011110100001110…
…101110011010011001000
311020211000112021212200011
4101132201311303103020
5124134132321023422
62315423100121304
7152525114001601
oct21364165632310
94224015255604
101201011111112
1142338950990a
12174920236234
1389340c153c7
14421b4928da8
1521393864077
hex117a1d734c8

1201011111112 has 64 divisors (see below), whose sum is σ = 2307089664000. Its totient is φ = 585870636096.

The previous prime is 1201011111103. The next prime is 1201011111127. The reversal of 1201011111112 is 2111111101021.

It is a junction number, because it is equal to n+sod(n) for n = 1201011111092 and 1201011111101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240825883 + ... + 240830869.

It is an arithmetic number, because the mean of its divisors is an integer number (36048276000).

Almost surely, 21201011111112 is an apocalyptic number.

It is an amenable number.

1201011111112 is a deficient number, since it is larger than the sum of its proper divisors (1106078552888).

1201011111112 is a wasteful number, since it uses less digits than its factorization.

1201011111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938 (or 6934 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1201011111112 its reverse (2111111101021), we get a palindrome (3312122212133).

The spelling of 1201011111112 in words is "one trillion, two hundred one billion, eleven million, one hundred eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 47 94 188 376 439 878 1459 1756 2918 3512 4987 5836 9974 11672 19948 20633 39896 41266 68573 82532 137146 165064 234389 274292 468778 548584 640501 937556 1281002 1875112 2189293 2562004 4378586 5124008 7276033 8757172 14552066 17514344 29104132 30103547 58208264 60207094 102896771 120414188 205793542 240828376 341973551 411587084 683947102 823174168 1367894204 2735788408 3194178487 6388356974 12776713948 25553427896 150126388889 300252777778 600505555556 1201011111112