1000122020131 has 8 divisors (see below), whose sum is σ = 1081345540464. Its totient is φ = 919511508000.

The previous prime is 1000122020081. The next prime is 1000122020143. The reversal of 1000122020131 is 1310202210001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000122020131 is a prime.

It is a super-2 number, since 2×1000122020131² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000122020171) 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 7 ways as a sum of consecutive naturals, for example, 153248656 + ... + 153255181.

It is an arithmetic number, because the mean of its divisors is an integer number (135168192558).

Almost surely, 2^{1000122020131} is an apocalyptic number.

1000122020131 is a deficient number, since it is larger than the sum of its proper divisors (81223520333).

1000122020131 is a wasteful number, since it uses less digits than its factorization.

1000122020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306504101.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1000122020131 its reverse (1310202210001), we get a palindrome (2310324230132).

The spelling of 1000122020131 in words is "one trillion, one hundred twenty-two million, twenty thousand, one hundred thirty-one".