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123101218068972 = 22311132320071155399
BaseRepresentation
bin11011111111010110111100…
…010111111101100111101100
3121010212100202112200222010220
4123333112330113331213230
5112113342243311201342
61113451530250531340
734633524640632243
oct3377267427754754
9533770675628126
10123101218068972
1136250a2a3a3260
1211981a10a36b50
13538c519c18c80
1422581b8a9b95a
15e37229edd5ec
hex6ff5bc5fd9ec

123101218068972 has 192 divisors, whose sum is σ = 352143938764800. Its totient is φ = 32934927801600.

The previous prime is 123101218068967. The next prime is 123101218069003. The reversal of 123101218068972 is 279860812101321.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 792084529 + ... + 792239927.

It is an arithmetic number, because the mean of its divisors is an integer number (1834083014400).

Almost surely, 2123101218068972 is an apocalyptic number.

123101218068972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123101218068972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176071969382400).

123101218068972 is an abundant number, since it is smaller than the sum of its proper divisors (229042720695828).

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

123101218068972 is a wasteful number, since it uses less digits than its factorization.

123101218068972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175524 (or 175522 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 123101218068972 in words is "one hundred twenty-three trillion, one hundred one billion, two hundred eighteen million, sixty-eight thousand, nine hundred seventy-two".