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1012130101 = 4721534683
BaseRepresentation
bin111100010100111…
…110000100110101
32121112111112111001
4330110332010311
54033101130401
6244233243301
734036651423
oct7424760465
92545445431
101012130101
1147a359364
12242b63531
131318c6468
14985c8113
155dcca601
hex3c53e135

1012130101 has 4 divisors (see below), whose sum is σ = 1033664832. Its totient is φ = 990595372.

The previous prime is 1012130083. The next prime is 1012130113. The reversal of 1012130101 is 1010312101.

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.

It is a cyclic number.

It is not a de Polignac number, because 1012130101 - 25 = 1012130069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012130401) 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, 10767295 + ... + 10767388.

It is an arithmetic number, because the mean of its divisors is an integer number (258416208).

Almost surely, 21012130101 is an apocalyptic number.

It is an amenable number.

1012130101 is a deficient number, since it is larger than the sum of its proper divisors (21534731).

1012130101 is an equidigital number, since it uses as much as digits as its factorization.

1012130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21534730.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1012130101 is about 31813.9922204052. The cubic root of 1012130101 is about 1004.0271274740.

Adding to 1012130101 its reverse (1010312101), we get a palindrome (2022442202).

The spelling of 1012130101 in words is "one billion, twelve million, one hundred thirty thousand, one hundred one".

Divisors: 1 47 21534683 1012130101