1531012065630 has 32 divisors (see below), whose sum is σ = 3674643936768. Its totient is φ = 408245997600.

The previous prime is 1531012065623. The next prime is 1531012065631. The reversal of 1531012065630 is 365602101351.

It is a junction number, because it is equal to n+sod(n) for n = 1531012065591 and 1531012065600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1531012065631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968586 + ... + 2000045.

It is an arithmetic number, because the mean of its divisors is an integer number (114832623024).

Almost surely, 2^{1531012065630} is an apocalyptic number.

1531012065630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1531012065630 is an abundant number, since it is smaller than the sum of its proper divisors (2143631871138).

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

1531012065630 is a wasteful number, since it uses less digits than its factorization.

1531012065630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985832.

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 1531012065630 its reverse (365602101351), we get a palindrome (1896614166981).

The spelling of 1531012065630 in words is "one trillion, five hundred thirty-one billion, twelve million, sixty-five thousand, six hundred thirty".