120254404551 has 8 divisors (see below), whose sum is σ = 169770924144. Its totient is φ = 75453744000.

The previous prime is 120254404519. The next prime is 120254404583. The reversal of 120254404551 is 155404452021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120254404519) and next prime (120254404583).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120254404551 - 2⁵ = 120254404519 is a prime.

It is a super-2 number, since 2×120254404551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120254404511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178964700 + ... + 1178964801.

It is an arithmetic number, because the mean of its divisors is an integer number (21221365518).

Almost surely, 2^120254404551 is an apocalyptic number.

120254404551 is a deficient number, since it is larger than the sum of its proper divisors (49516519593).

120254404551 is a wasteful number, since it uses less digits than its factorization.

120254404551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357929521.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 120254404551 its reverse (155404452021), we get a palindrome (275658856572).

The spelling of 120254404551 in words is "one hundred twenty billion, two hundred fifty-four million, four hundred four thousand, five hundred fifty-one".