3540120112031 has 4 divisors (see below), whose sum is σ = 3540141041232. Its totient is φ = 3540099182832.

The previous prime is 3540120111949. The next prime is 3540120112049. The reversal of 3540120112031 is 1302110210453.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3540120112031 is a prime.

It is a super-2 number, since 2×3540120112031² (a number of 26 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 = 3540120111988 and 3540120112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540120112051) 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, 10208795 + ... + 10549868.

It is an arithmetic number, because the mean of its divisors is an integer number (885035260308).

Almost surely, 2^{3540120112031} is an apocalyptic number.

3540120112031 is a deficient number, since it is larger than the sum of its proper divisors (20929201).

3540120112031 is a wasteful number, since it uses less digits than its factorization.

3540120112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20929200.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 3540120112031 its reverse (1302110210453), we get a palindrome (4842230322484).

The spelling of 3540120112031 in words is "three trillion, five hundred forty billion, one hundred twenty million, one hundred twelve thousand, thirty-one".