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32102031121 = 311035549391
BaseRepresentation
bin11101111001011011…
…100001111100010001
310001212020122010222121
4131321123201330101
51011221104443441
622425241534241
72214342522316
oct357133417421
9101766563877
1032102031121
111268383a136
12627aaa4381
133047a145b4
1417a76a2d0d
15c7d442dd1
hex7796e1f11

32102031121 has 4 divisors (see below), whose sum is σ = 33137580544. Its totient is φ = 31066481700.

The previous prime is 32102031113. The next prime is 32102031149. The reversal of 32102031121 is 12113020123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12113020123 = 63671902469.

It is a cyclic number.

It is not a de Polignac number, because 32102031121 - 23 = 32102031113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32102031095 and 32102031104.

It is not an unprimeable number, because it can be changed into a prime (32102031151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517774665 + ... + 517774726.

It is an arithmetic number, because the mean of its divisors is an integer number (8284395136).

Almost surely, 232102031121 is an apocalyptic number.

32102031121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32102031121 is a deficient number, since it is larger than the sum of its proper divisors (1035549423).

32102031121 is a wasteful number, since it uses less digits than its factorization.

32102031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035549422.

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

Adding to 32102031121 its reverse (12113020123), we get a palindrome (44215051244).

The spelling of 32102031121 in words is "thirty-two billion, one hundred two million, thirty-one thousand, one hundred twenty-one".

Divisors: 1 31 1035549391 32102031121