2051151320 has 32 divisors (see below), whose sum is σ = 4886568000. Its totient is φ = 772197888.

The previous prime is 2051151317. The next prime is 2051151367. The reversal of 2051151320 is 231511502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2051151292 and 2051151301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507520 + ... + 1508879.

It is an arithmetic number, because the mean of its divisors is an integer number (152705250).

Almost surely, 2^2051151320 is an apocalyptic number.

2051151320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051151320 is an abundant number, since it is smaller than the sum of its proper divisors (2835416680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051151320 is a wasteful number, since it uses less digits than its factorization.

2051151320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016427 (or 3016423 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2051151320 is about 45289.6381085122. The cubic root of 2051151320 is about 1270.5718630704.

Adding to 2051151320 its reverse (231511502), we get a palindrome (2282662822).

The spelling of 2051151320 in words is "two billion, fifty-one million, one hundred fifty-one thousand, three hundred twenty".