1201011051 has 8 divisors (see below), whose sum is σ = 1602130320. Its totient is φ = 800282912.

The previous prime is 1201011043. The next prime is 1201011059. The reversal of 1201011051 is 1501101021.

It is an interprime number because it is at equal distance from previous prime (1201011043) and next prime (1201011059).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201011051 - 2³ = 1201011043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201011059) 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, 90540 + ... + 102953.

It is an arithmetic number, because the mean of its divisors is an integer number (200266290).

Almost surely, 2^1201011051 is an apocalyptic number.

1201011051 is a deficient number, since it is larger than the sum of its proper divisors (401119269).

1201011051 is a wasteful number, since it uses less digits than its factorization.

1201011051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195565.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1201011051 is about 34655.6063429858. The cubic root of 1201011051 is about 1062.9569304068.

Adding to 1201011051 its reverse (1501101021), we get a palindrome (2702112072).

The spelling of 1201011051 in words is "one billion, two hundred one million, eleven thousand, fifty-one".