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1030131311 = 1193648301
BaseRepresentation
bin111101011001101…
…000111001101111
32122210101002111112
4331121220321233
54102203200221
6250115142235
734345654166
oct7531507157
92583332445
101030131311
114895339a0
12248ba497b
13135559b71
149ab523dd
156068415b
hex3d668e6f

1030131311 has 4 divisors (see below), whose sum is σ = 1123779624. Its totient is φ = 936483000.

The previous prime is 1030131293. The next prime is 1030131331. The reversal of 1030131311 is 1131310301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1030131311 - 218 = 1029869167 is a prime.

It is a super-2 number, since 2×10301313112 = 2122341035805157442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030131331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46824140 + ... + 46824161.

It is an arithmetic number, because the mean of its divisors is an integer number (280944906).

Almost surely, 21030131311 is an apocalyptic number.

1030131311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1030131311 is a deficient number, since it is larger than the sum of its proper divisors (93648313).

1030131311 is an equidigital number, since it uses as much as digits as its factorization.

1030131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93648312.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1030131311 is about 32095.6587562867. The cubic root of 1030131311 is about 1009.9445484702.

Adding to 1030131311 its reverse (1131310301), we get a palindrome (2161441612).

The spelling of 1030131311 in words is "one billion, thirty million, one hundred thirty-one thousand, three hundred eleven".

Divisors: 1 11 93648301 1030131311