1055121351 has 4 divisors (see below), whose sum is σ = 1406828472. Its totient is φ = 703414232.

The previous prime is 1055121349. The next prime is 1055121373. The reversal of 1055121351 is 1531215501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1055121351 - 2¹ = 1055121349 is a prime.

It is a super-2 number, since 2×1055121351² = 2226562130672130402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055121451) 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, 175853556 + ... + 175853561.

It is an arithmetic number, because the mean of its divisors is an integer number (351707118).

Almost surely, 2^1055121351 is an apocalyptic number.

1055121351 is a deficient number, since it is larger than the sum of its proper divisors (351707121).

1055121351 is an equidigital number, since it uses as much as digits as its factorization.

1055121351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351707120.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1055121351 is about 32482.6315282491. The cubic root of 1055121351 is about 1018.0461607542.

Adding to 1055121351 its reverse (1531215501), we get a palindrome (2586336852).

The spelling of 1055121351 in words is "one billion, fifty-five million, one hundred twenty-one thousand, three hundred fifty-one".