1055420031 has 4 divisors (see below), whose sum is σ = 1407226712. Its totient is φ = 703613352.

The previous prime is 1055420029. The next prime is 1055420033. The reversal of 1055420031 is 1300245501.

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

It is an interprime number because it is at equal distance from previous prime (1055420029) and next prime (1055420033).

It is not a de Polignac number, because 1055420031 - 2¹ = 1055420029 is a prime.

It is a super-3 number, since 3×1055420031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055420033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175903336 + ... + 175903341.

It is an arithmetic number, because the mean of its divisors is an integer number (351806678).

Almost surely, 2^1055420031 is an apocalyptic number.

1055420031 is a deficient number, since it is larger than the sum of its proper divisors (351806681).

1055420031 is an equidigital number, since it uses as much as digits as its factorization.

1055420031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351806680.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1055420031 is about 32487.2287368437. The cubic root of 1055420031 is about 1018.1422133204.

Adding to 1055420031 its reverse (1300245501), we get a palindrome (2355665532).

The spelling of 1055420031 in words is "one billion, fifty-five million, four hundred twenty thousand, thirty-one".