1121201010031 has 4 divisors (see below), whose sum is σ = 1121203565064. Its totient is φ = 1121198455000.

The previous prime is 1121201010019. The next prime is 1121201010043. The reversal of 1121201010031 is 1300101021211.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1121201010019) and next prime (1121201010043).

It is a cyclic number.

It is not a de Polignac number, because 1121201010031 - 2¹³ = 1121201001839 is a prime.

It is a super-2 number, since 2×1121201010031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121201009993 and 1121201010020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121201010331) 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, 433345 + ... + 1558906.

It is an arithmetic number, because the mean of its divisors is an integer number (280300891266).

Almost surely, 2^{1121201010031} is an apocalyptic number.

1121201010031 is a deficient number, since it is larger than the sum of its proper divisors (2555033).

1121201010031 is an equidigital number, since it uses as much as digits as its factorization.

1121201010031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555032.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1121201010031 its reverse (1300101021211), we get a palindrome (2421302031242).

The spelling of 1121201010031 in words is "one trillion, one hundred twenty-one billion, two hundred one million, ten thousand, thirty-one".