1012011422531 has 4 divisors (see below), whose sum is σ = 1015265478864. Its totient is φ = 1008757366200.

The previous prime is 1012011422519. The next prime is 1012011422533. The reversal of 1012011422531 is 1352241102101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012011422531 is a prime.

It is a super-2 number, since 2×1012011422531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012011422497 and 1012011422506.

It is not an unprimeable number, because it can be changed into a prime (1012011422533) 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, 1627027700 + ... + 1627028321.

It is an arithmetic number, because the mean of its divisors is an integer number (253816369716).

Almost surely, 2^{1012011422531} is an apocalyptic number.

1012011422531 is a deficient number, since it is larger than the sum of its proper divisors (3254056333).

1012011422531 is an equidigital number, since it uses as much as digits as its factorization.

1012011422531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254056332.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1012011422531 its reverse (1352241102101), we get a palindrome (2364252524632).

The spelling of 1012011422531 in words is "one trillion, twelve billion, eleven million, four hundred twenty-two thousand, five hundred thirty-one".