1013123551 has 8 divisors (see below), whose sum is σ = 1170239184. Its totient is φ = 866843520.

The previous prime is 1013123537. The next prime is 1013123557. The reversal of 1013123551 is 1553213101.

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 1013123551 - 2⁵ = 1013123519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013123557) by changing a digit.

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, 2708700 + ... + 2709073.

It is an arithmetic number, because the mean of its divisors is an integer number (146279898).

Almost surely, 2^1013123551 is an apocalyptic number.

1013123551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1013123551 is a deficient number, since it is larger than the sum of its proper divisors (157115633).

1013123551 is a wasteful number, since it uses less digits than its factorization.

1013123551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417801.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1013123551 is about 31829.6018039811. The cubic root of 1013123551 is about 1004.3555189128.

Adding to 1013123551 its reverse (1553213101), we get a palindrome (2566336652).

The spelling of 1013123551 in words is "one billion, thirteen million, one hundred twenty-three thousand, five hundred fifty-one".