1023121016 has 32 divisors (see below), whose sum is σ = 1976238000. Its totient is φ = 496285440.

The previous prime is 1023120977. The next prime is 1023121019. The reversal of 1023121016 is 6101213201.

It is a super-2 number, since 2×1023121016² = 2093553226761744512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1023120985 and 1023121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023121019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41276 + ... + 61236.

Almost surely, 2^1023121016 is an apocalyptic number.

It is an amenable number.

1023121016 is a deficient number, since it is larger than the sum of its proper divisors (953116984).

1023121016 is a wasteful number, since it uses less digits than its factorization.

1023121016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20159 (or 20155 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1023121016 is about 31986.2629264502. The cubic root of 1023121016 is about 1007.6483588046.

Adding to 1023121016 its reverse (6101213201), we get a palindrome (7124334217).

The spelling of 1023121016 in words is "one billion, twenty-three million, one hundred twenty-one thousand, sixteen".