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31300121122 = 219993782777
BaseRepresentation
bin11101001001101000…
…011111001000100010
32222210100200220021021
4131021220133020202
51003100312333442
622213514120054
72155434432304
oct351150371042
988710626237
1031300121122
11123021142a6
12609642002a
132c4a84323a
14172cd9b974
15c32d3ee67
hex749a1f222

31300121122 has 8 divisors (see below), whose sum is σ = 46952589996. Its totient is φ = 15649257792.

The previous prime is 31300121107. The next prime is 31300121161. The reversal of 31300121122 is 22112100313.

It can be written as a sum of positive squares in 2 ways, for example, as 30607852401 + 692268721 = 174951^2 + 26311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31300121096 and 31300121105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351403 + ... + 431374.

Almost surely, 231300121122 is an apocalyptic number.

31300121122 is a deficient number, since it is larger than the sum of its proper divisors (15652468874).

31300121122 is a wasteful number, since it uses less digits than its factorization.

31300121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802772.

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

Adding to 31300121122 its reverse (22112100313), we get a palindrome (53412221435).

The spelling of 31300121122 in words is "thirty-one billion, three hundred million, one hundred twenty-one thousand, one hundred twenty-two".

Divisors: 1 2 19993 39986 782777 1565554 15650060561 31300121122