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131201011012 = 22271409541547
BaseRepresentation
bin111101000110000110…
…0001000110101000100
3110112122121211221000011
41322030030020311010
54122144424323022
6140134541000004
712323166123121
oct1721414106504
9415577757004
10131201011012
1150707606515
1221516b53004
13c4ab961236
1464c8bbd748
15362d4ed977
hex1e8c308d44

131201011012 has 48 divisors (see below), whose sum is σ = 231862570240. Its totient is φ = 64959148800.

The previous prime is 131201011001. The next prime is 131201011057. The reversal of 131201011012 is 210110102131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131201010983 and 131201011001.

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, 239855323 + ... + 239855869.

Almost surely, 2131201011012 is an apocalyptic number.

It is an amenable number.

131201011012 is a deficient number, since it is larger than the sum of its proper divisors (100661559228).

131201011012 is a wasteful number, since it uses less digits than its factorization.

131201011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 131201011012 its reverse (210110102131), we get a palindrome (341311113143).

The spelling of 131201011012 in words is "one hundred thirty-one billion, two hundred one million, eleven thousand, twelve".

Divisors: 1 2 4 271 409 541 542 547 818 1082 1084 1094 1636 2164 2188 110839 146611 148237 221269 221678 223723 293222 295927 296474 442538 443356 447446 586444 591854 592948 885076 894892 1183708 59963899 60628933 80196217 119927798 121034143 121257866 160392434 239855596 242068286 242515732 320784868 484136572 32800252753 65600505506 131201011012