120402020311 has 16 divisors (see below), whose sum is σ = 131486094720. Its totient is φ = 109810316800.

The previous prime is 120402020261. The next prime is 120402020329. The reversal of 120402020311 is 113020204021.

It is not a de Polignac number, because 120402020311 - 2⁹ = 120402019799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120402020351) 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, 665296 + ... + 826693.

It is an arithmetic number, because the mean of its divisors is an integer number (8217880920).

Almost surely, 2^120402020311 is an apocalyptic number.

120402020311 is a deficient number, since it is larger than the sum of its proper divisors (11084074409).

120402020311 is a wasteful number, since it uses less digits than its factorization.

120402020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492154.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 120402020311 its reverse (113020204021), we get a palindrome (233422224332).

The spelling of 120402020311 in words is "one hundred twenty billion, four hundred two million, twenty thousand, three hundred eleven".