120430401531 has 64 divisors (see below), whose sum is σ = 180892776960. Its totient is φ = 70645386240.

The previous prime is 120430401467. The next prime is 120430401541. The reversal of 120430401531 is 135104034021.

It is a happy number.

It is not a de Polignac number, because 120430401531 - 2⁶ = 120430401467 is a prime.

It is a super-2 number, since 2×120430401531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120430401541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132778380 + ... + 132779286.

It is an arithmetic number, because the mean of its divisors is an integer number (2826449640).

Almost surely, 2^120430401531 is an apocalyptic number.

120430401531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120430401531 is a deficient number, since it is larger than the sum of its proper divisors (60462375429).

120430401531 is a wasteful number, since it uses less digits than its factorization.

120430401531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 120430401531 its reverse (135104034021), we get a palindrome (255534435552).

The spelling of 120430401531 in words is "one hundred twenty billion, four hundred thirty million, four hundred one thousand, five hundred thirty-one".