151134020421 has 8 divisors (see below), whose sum is σ = 201519659904. Its totient is φ = 100752197280.

The previous prime is 151134020417. The next prime is 151134020447. The reversal of 151134020421 is 124020431151.

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

It is not a de Polignac number, because 151134020421 - 2² = 151134020417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 151134020391 and 151134020400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151134020491) 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, 860365 + ... + 1021026.

It is an arithmetic number, because the mean of its divisors is an integer number (25189957488).

Almost surely, 2^151134020421 is an apocalyptic number.

It is an amenable number.

151134020421 is a deficient number, since it is larger than the sum of its proper divisors (50385639483).

151134020421 is a wasteful number, since it uses less digits than its factorization.

151134020421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908171.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 151134020421 its reverse (124020431151), we get a palindrome (275154451572).

The spelling of 151134020421 in words is "one hundred fifty-one billion, one hundred thirty-four million, twenty thousand, four hundred twenty-one".