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2021001132031 = 74993361172147
BaseRepresentation
bin11101011010001101000…
…011011111011111111111
321011012120001011220011221
4131122031003133133333
5231103002242211111
64144233552054211
7266004202116160
oct35321503373777
97135501156157
102021001132031
1170a1134a7152
12287825234367
1311876c48450b
146db61ad9767
1537886aa0371
hex1d68d0df7ff

2021001132031 has 16 divisors (see below), whose sum is σ = 2315046304000. Its totient is φ = 1728290753280.

The previous prime is 2021001132023. The next prime is 2021001132071. The reversal of 2021001132031 is 1302311001202.

It is not a de Polignac number, because 2021001132031 - 23 = 2021001132023 is a prime.

It is a super-2 number, since 2×20210011320312 (a number of 25 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 = 2021001131996 and 2021001132014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021001132011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11653900 + ... + 11826046.

It is an arithmetic number, because the mean of its divisors is an integer number (144690394000).

Almost surely, 22021001132031 is an apocalyptic number.

2021001132031 is a deficient number, since it is larger than the sum of its proper divisors (294045171969).

2021001132031 is a wasteful number, since it uses less digits than its factorization.

2021001132031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176014.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2021001132031 its reverse (1302311001202), we get a palindrome (3323312133233).

The spelling of 2021001132031 in words is "two trillion, twenty-one billion, one million, one hundred thirty-two thousand, thirty-one".

Divisors: 1 7 499 3361 3493 23527 172147 1205029 1677139 11739973 85901353 578586067 601309471 4050102469 288714447433 2021001132031