1020131411555 has 8 divisors (see below), whose sum is σ = 1224163270800. Its totient is φ = 816101411296.

The previous prime is 1020131411527. The next prime is 1020131411561. The reversal of 1020131411555 is 5551141310201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1020131411555 - 2¹² = 1020131407459 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489841 + ... + 2063949.

It is an arithmetic number, because the mean of its divisors is an integer number (153020408850).

Almost surely, 2^{1020131411555} is an apocalyptic number.

1020131411555 is a deficient number, since it is larger than the sum of its proper divisors (204031859245).

1020131411555 is an equidigital number, since it uses as much as digits as its factorization.

1020131411555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929493.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 1020131411555 its reverse (5551141310201), we get a palindrome (6571272721756).

The spelling of 1020131411555 in words is "one trillion, twenty billion, one hundred thirty-one million, four hundred eleven thousand, five hundred fifty-five".