251320301130 has 64 divisors (see below), whose sum is σ = 634995417600. Its totient is φ = 63483347520.

The previous prime is 251320301107. The next prime is 251320301137. The reversal of 251320301130 is 31103023152.

It is a junction number, because it is equal to n+sod(n) for n = 251320301097 and 251320301106.

It is not an unprimeable number, because it can be changed into a prime (251320301137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5345425 + ... + 5392235.

It is an arithmetic number, because the mean of its divisors is an integer number (9921803400).

Almost surely, 2^251320301130 is an apocalyptic number.

251320301130 is an abundant number, since it is smaller than the sum of its proper divisors (383675116470).

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

251320301130 is a wasteful number, since it uses less digits than its factorization.

251320301130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56259.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 251320301130 its reverse (31103023152), we get a palindrome (282423324282).

The spelling of 251320301130 in words is "two hundred fifty-one billion, three hundred twenty million, three hundred one thousand, one hundred thirty".