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23130133212020 = 225232313710691783
BaseRepresentation
bin1010100001001011001110…
…10111111010101101110100
310000220012220202022220021012
411100211213113322231310
511012431003100241040
6121105500404011352
74605045156232412
oct520454727725564
9100805822286235
1023130133212020
11740848621901a
122716936990b58
13cba215489c33
1459d70c1b82b2
152a1a03ea3865
hex1509675fab74

23130133212020 has 288 divisors, whose sum is σ = 53912146606080. Its totient is φ = 8320380963840.

The previous prime is 23130133212007. The next prime is 23130133212029. The reversal of 23130133212020 is 2021233103132.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130133212029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12972592049 + ... + 12972593831.

Almost surely, 223130133212020 is an apocalyptic number.

23130133212020 is a gapful number since it is divisible by the number (20) 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 23130133212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26956073303040).

23130133212020 is an abundant number, since it is smaller than the sum of its proper divisors (30782013394060).

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

23130133212020 is a wasteful number, since it uses less digits than its factorization.

23130133212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 23130133212020 its reverse (2021233103132), we get a palindrome (25151366315152).

The spelling of 23130133212020 in words is "twenty-three trillion, one hundred thirty billion, one hundred thirty-three million, two hundred twelve thousand, twenty".