1013031121 has 8 divisors (see below), whose sum is σ = 1038320640. Its totient is φ = 988012368.

The previous prime is 1013031049. The next prime is 1013031137. The reversal of 1013031121 is 1211303101.

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-1013031121 is a prime.

It is a super-2 number, since 2×1013031121² = 2052464104229033282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013031181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60106 + ... + 75091.

It is an arithmetic number, because the mean of its divisors is an integer number (129790080).

Almost surely, 2^1013031121 is an apocalyptic number.

It is an amenable number.

1013031121 is a deficient number, since it is larger than the sum of its proper divisors (25289519).

1013031121 is a wasteful number, since it uses less digits than its factorization.

1013031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135383.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1013031121 is about 31828.1498205598. The cubic root of 1013031121 is about 1004.3249746277.

Adding to 1013031121 its reverse (1211303101), we get a palindrome (2224334222).

The spelling of 1013031121 in words is "one billion, thirteen million, thirty-one thousand, one hundred twenty-one".