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1010130031 = 2343918697
BaseRepresentation
bin111100001101010…
…101110001101111
32121101201220220101
4330031111301233
54032043130111
6244122331531
734013651341
oct7415256157
92541656811
101010130031
11479212709
12242359ba7
13131375ca1
1498227291
155da32bc1
hex3c355c6f

1010130031 has 4 divisors (see below), whose sum is σ = 1054048752. Its totient is φ = 966211312.

The previous prime is 1010130029. The next prime is 1010130067. The reversal of 1010130031 is 1300310101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300310101 = 2235830987.

It is a cyclic number.

It is not a de Polignac number, because 1010130031 - 21 = 1010130029 is a prime.

It is a super-2 number, since 2×10101300312 = 2040725359056121922, which 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 (1010130631) 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, 21959326 + ... + 21959371.

It is an arithmetic number, because the mean of its divisors is an integer number (263512188).

Almost surely, 21010130031 is an apocalyptic number.

1010130031 is a deficient number, since it is larger than the sum of its proper divisors (43918721).

1010130031 is an equidigital number, since it uses as much as digits as its factorization.

1010130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43918720.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1010130031 is about 31782.5428655418. The cubic root of 1010130031 is about 1003.3653387901.

Adding to 1010130031 its reverse (1300310101), we get a palindrome (2310440132).

The spelling of 1010130031 in words is "one billion, ten million, one hundred thirty thousand, thirty-one".

Divisors: 1 23 43918697 1010130031