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1012130131 = 2934901039
BaseRepresentation
bin111100010100111…
…110000101010011
32121112111112112011
4330110332011103
54033101131011
6244233243351
734036651465
oct7424760523
92545445464
101012130131
1147a359391
12242b63557
131318c648c
14985c8135
155dcca621
hex3c53e153

1012130131 has 4 divisors (see below), whose sum is σ = 1047031200. Its totient is φ = 977229064.

The previous prime is 1012130123. The next prime is 1012130149. The reversal of 1012130131 is 1310312101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310312101 = 7187187443.

It is a cyclic number.

It is not a de Polignac number, because 1012130131 - 23 = 1012130123 is a prime.

It is a super-2 number, since 2×10121301312 = 2048814804156154322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012130531) 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, 17450491 + ... + 17450548.

It is an arithmetic number, because the mean of its divisors is an integer number (261757800).

Almost surely, 21012130131 is an apocalyptic number.

1012130131 is a deficient number, since it is larger than the sum of its proper divisors (34901069).

1012130131 is an equidigital number, since it uses as much as digits as its factorization.

1012130131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34901068.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1012130131 is about 31813.9926918958. The cubic root of 1012130131 is about 1004.0271373939.

Adding to 1012130131 its reverse (1310312101), we get a palindrome (2322442232).

The spelling of 1012130131 in words is "one billion, twelve million, one hundred thirty thousand, one hundred thirty-one".

Divisors: 1 29 34901039 1012130131