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32121013031 = 2983129710289
BaseRepresentation
bin11101111010100011…
…111100001100100111
310001220120100112021022
4131322203330030213
51011240434404111
622431200441355
72214663051212
oct357243741447
9101816315238
1032121013031
1112693524568
12628531925b
13304b92c4b3
1417aa004779
15c7ee422db
hex77a8fc327

32121013031 has 16 divisors (see below), whose sum is σ = 33658178400. Its totient is φ = 30613137408.

The previous prime is 32121013007. The next prime is 32121013039. The reversal of 32121013031 is 13031012123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32121013031 is a prime.

It is a super-2 number, since 2×321210130312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121013039) 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, 3116735 + ... + 3127023.

It is an arithmetic number, because the mean of its divisors is an integer number (2103636150).

Almost surely, 232121013031 is an apocalyptic number.

32121013031 is a deficient number, since it is larger than the sum of its proper divisors (1537165369).

32121013031 is a wasteful number, since it uses less digits than its factorization.

32121013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11698.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 32121013031 its reverse (13031012123), we get a palindrome (45152025154).

The spelling of 32121013031 in words is "thirty-two billion, one hundred twenty-one million, thirteen thousand, thirty-one".

Divisors: 1 29 83 1297 2407 10289 37613 107651 298381 853987 3121879 13344833 24765623 387000157 1107621139 32121013031