1051213120 has 28 divisors (see below), whose sum is σ = 2503202004. Its totient is φ = 420485120.

The previous prime is 1051213109. The next prime is 1051213127. The reversal of 1051213120 is 213121501.

It can be written as a sum of positive squares in 2 ways, for example, as 754271296 + 296941824 = 27464^2 + 17232^2 .

It is a super-2 number, since 2×1051213120² = 2210098047320268800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1051213094 and 1051213103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051213127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642201 + ... + 1642840.

Almost surely, 2^1051213120 is an apocalyptic number.

1051213120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051213120 is an abundant number, since it is smaller than the sum of its proper divisors (1451988884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051213120 is an equidigital number, since it uses as much as digits as its factorization.

1051213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285058 (or 3285048 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1051213120 is about 32422.4169364346. The cubic root of 1051213120 is about 1016.7876381479.

Adding to 1051213120 its reverse (213121501), we get a palindrome (1264334621).

It can be divided in two parts, 105121 and 3120, that added together give a square (108241 = 329²).

The spelling of 1051213120 in words is "one billion, fifty-one million, two hundred thirteen thousand, one hundred twenty".