1020431244055 has 16 divisors (see below), whose sum is σ = 1290912067584. Its totient is φ = 773202529440.

The previous prime is 1020431244037. The next prime is 1020431244193. The reversal of 1020431244055 is 5504421340201.

It is not a de Polignac number, because 1020431244055 - 2⁷ = 1020431243927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70029177 + ... + 70043746.

It is an arithmetic number, because the mean of its divisors is an integer number (80682004224).

Almost surely, 2^{1020431244055} is an apocalyptic number.

1020431244055 is a deficient number, since it is larger than the sum of its proper divisors (270480823529).

1020431244055 is a wasteful number, since it uses less digits than its factorization.

1020431244055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140073006.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1020431244055 its reverse (5504421340201), we get a palindrome (6524852584256).

The spelling of 1020431244055 in words is "one trillion, twenty billion, four hundred thirty-one million, two hundred forty-four thousand, fifty-five".