Search a number
-
+
1021130232031 = 71311221211341
BaseRepresentation
bin11101101110000000001…
…10101101000011011111
310121121201022200102121101
432313000012231003133
5113212233314411111
62101033432413531
7133526362522030
oct16670006550337
93547638612541
101021130232031
11364071438a78
12145a9a5472a7
13753a4b7a910
14375cc89aa87
151b86683abc1
hexedc01ad0df

1021130232031 has 8 divisors (see below), whose sum is σ = 1256775670304. Its totient is φ = 807927216480.

The previous prime is 1021130231969. The next prime is 1021130232047. The reversal of 1021130232031 is 1302320311201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1021130232031 is a prime.

It is a super-2 number, since 2×10211302320312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021130202031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5610605580 + ... + 5610605761.

It is an arithmetic number, because the mean of its divisors is an integer number (157096958788).

Almost surely, 21021130232031 is an apocalyptic number.

1021130232031 is a deficient number, since it is larger than the sum of its proper divisors (235645438273).

1021130232031 is a wasteful number, since it uses less digits than its factorization.

1021130232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11221211361.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1021130232031 its reverse (1302320311201), we get a palindrome (2323450543232).

The spelling of 1021130232031 in words is "one trillion, twenty-one billion, one hundred thirty million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 7 13 91 11221211341 78548479387 145875747433 1021130232031