1030121356 has 48 divisors (see below), whose sum is σ = 2037934080. Its totient is φ = 451555520.

The previous prime is 1030121291. The next prime is 1030121357. The reversal of 1030121356 is 6531210301.

It is a happy number.

It is a super-2 number, since 2×1030121356² = 2122300016174557472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1030121357) 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 15 ways as a sum of consecutive naturals, for example, 133845 + ... + 141331.

It is an arithmetic number, because the mean of its divisors is an integer number (42456960).

Almost surely, 2^1030121356 is an apocalyptic number.

It is an amenable number.

1030121356 is a deficient number, since it is larger than the sum of its proper divisors (1007812724).

1030121356 is a wasteful number, since it uses less digits than its factorization.

1030121356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7614 (or 7612 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1030121356 is about 32095.5036726330. The cubic root of 1030121356 is about 1009.9412951534.

Adding to 1030121356 its reverse (6531210301), we get a palindrome (7561331657).

The spelling of 1030121356 in words is "one billion, thirty million, one hundred twenty-one thousand, three hundred fifty-six".