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103010311212 = 2238584192601
BaseRepresentation
bin101111111101111100…
…1001001110000101100
3100211212222001222220120
41133323321021300230
53141431114424322
6115153340244540
710304456125014
oct1377371116054
9324788058816
10103010311212
113a7606a9506
1217b69b40750
139938394393
144db2b8cc44
152a2d668a5c
hex17fbe49c2c

103010311212 has 12 divisors (see below), whose sum is σ = 240357392856. Its totient is φ = 34336770400.

The previous prime is 103010311189. The next prime is 103010311259. The reversal of 103010311212 is 212113010301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1030103112122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103010311191 and 103010311200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4292096289 + ... + 4292096312.

It is an arithmetic number, because the mean of its divisors is an integer number (20029782738).

Almost surely, 2103010311212 is an apocalyptic number.

103010311212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103010311212 is an abundant number, since it is smaller than the sum of its proper divisors (137347081644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103010311212 is a wasteful number, since it uses less digits than its factorization.

103010311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584192608 (or 8584192606 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 103010311212 its reverse (212113010301), we get a palindrome (315123321513).

The spelling of 103010311212 in words is "one hundred three billion, ten million, three hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 8584192601 17168385202 25752577803 34336770404 51505155606 103010311212