1051220043 has 24 divisors (see below), whose sum is σ = 1582308000. Its totient is φ = 671685504.

The previous prime is 1051220039. The next prime is 1051220047. The reversal of 1051220043 is 3400221501.

1051220043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1051220039) and next prime (1051220047).

It is not a de Polignac number, because 1051220043 - 2² = 1051220039 is a prime.

It is a super-2 number, since 2×1051220043² = 2210127157609843698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051219998 and 1051220025.

It is not an unprimeable number, because it can be changed into a prime (1051220047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21058 + ... + 50456.

It is an arithmetic number, because the mean of its divisors is an integer number (65929500).

Almost surely, 2^1051220043 is an apocalyptic number.

1051220043 is a deficient number, since it is larger than the sum of its proper divisors (531087957).

1051220043 is a wasteful number, since it uses less digits than its factorization.

1051220043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29571 (or 29568 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1051220043 is about 32422.5236988116. The cubic root of 1051220043 is about 1016.7898702374.

Adding to 1051220043 its reverse (3400221501), we get a palindrome (4451441544).

The spelling of 1051220043 in words is "one billion, fifty-one million, two hundred twenty thousand, forty-three".