1051012111001 has 4 divisors (see below), whose sum is σ = 1051015030032. Its totient is φ = 1051009191972.

The previous prime is 1051012110989. The next prime is 1051012111007. The reversal of 1051012111001 is 1001112101501.

1051012111001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1051012111001 - 2³⁸ = 776134204057 is a prime.

It is a super-2 number, since 2×1051012111001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051012111007) 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, 828491 + ... + 1669856.

It is an arithmetic number, because the mean of its divisors is an integer number (262753757508).

Almost surely, 2^{1051012111001} is an apocalyptic number.

It is an amenable number.

1051012111001 is a deficient number, since it is larger than the sum of its proper divisors (2919031).

1051012111001 is an equidigital number, since it uses as much as digits as its factorization.

1051012111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919030.

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 1051012111001 its reverse (1001112101501), we get a palindrome (2052124212502).

The spelling of 1051012111001 in words is "one trillion, fifty-one billion, twelve million, one hundred eleven thousand, one".