1121201023011 has 16 divisors (see below), whose sum is σ = 1512639626784. Its totient is φ = 738654142464.

The previous prime is 1121201022959. The next prime is 1121201023073. The reversal of 1121201023011 is 1103201021211.

It is not a de Polignac number, because 1121201023011 - 2⁷ = 1121201022883 is a prime.

It is a super-2 number, since 2×1121201023011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121201023091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4792846 + ... + 5021331.

It is an arithmetic number, because the mean of its divisors is an integer number (94539976674).

Almost surely, 2^{1121201023011} is an apocalyptic number.

1121201023011 is a deficient number, since it is larger than the sum of its proper divisors (391438603773).

1121201023011 is a wasteful number, since it uses less digits than its factorization.

1121201023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814630.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1121201023011 its reverse (1103201021211), we get a palindrome (2224402044222).

The spelling of 1121201023011 in words is "one trillion, one hundred twenty-one billion, two hundred one million, twenty-three thousand, eleven".