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100110121031 = 2915721987727
BaseRepresentation
bin101110100111100000…
…1110011100001000111
3100120101211212001220102
41131033001303201013
53120011142333111
6113553455154315
710142551663034
oct1351701634107
9316354761812
10100110121031
113950260a718
121749a81599b
139595587c0b
144bb992838b
15290dc3d13b
hex174f073847

100110121031 has 8 divisors (see below), whose sum is σ = 104221830720. Its totient is φ = 96042387168.

The previous prime is 100110121021. The next prime is 100110121051. The reversal of 100110121031 is 130121011001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100110121031 - 26 = 100110120967 is a prime.

It is a super-2 number, since 2×1001101210312 (a number of 23 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 (100110121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10989311 + ... + 10998416.

It is an arithmetic number, because the mean of its divisors is an integer number (13027728840).

Almost surely, 2100110121031 is an apocalyptic number.

100110121031 is a deficient number, since it is larger than the sum of its proper divisors (4111709689).

100110121031 is a wasteful number, since it uses less digits than its factorization.

100110121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21987913.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 100110121031 its reverse (130121011001), we get a palindrome (230231132032).

The spelling of 100110121031 in words is "one hundred billion, one hundred ten million, one hundred twenty-one thousand, thirty-one".

Divisors: 1 29 157 4553 21987727 637644083 3452073139 100110121031