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10091213001031 = 43234679372117
BaseRepresentation
bin1001001011011000101100…
…1010101001000101000111
31022201201011222120210112211
42102312023022221011013
52310313301012013111
633243501140124251
72061031444145101
oct222661312510507
938651158523484
1010091213001031
1132407287307a8
12116b8b2996687
1358279c374796
1426c5bb182571
15127767a27521
hex92d8b2a9147

10091213001031 has 4 divisors (see below), whose sum is σ = 10325892373192. Its totient is φ = 9856533628872.

The previous prime is 10091213001017. The next prime is 10091213001061. The reversal of 10091213001031 is 13010031219001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10091213001031 is a prime.

It is a super-2 number, since 2×100912130010312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10091213000993 and 10091213001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10091213001011) 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, 117339686016 + ... + 117339686101.

It is an arithmetic number, because the mean of its divisors is an integer number (2581473093298).

Almost surely, 210091213001031 is an apocalyptic number.

10091213001031 is a deficient number, since it is larger than the sum of its proper divisors (234679372161).

10091213001031 is an equidigital number, since it uses as much as digits as its factorization.

10091213001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234679372160.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 10091213001031 in words is "ten trillion, ninety-one billion, two hundred thirteen million, one thousand, thirty-one".

Divisors: 1 43 234679372117 10091213001031