152021321431 has 8 divisors (see below), whose sum is σ = 178434292640. Its totient is φ = 126782260128.

The previous prime is 152021321393. The next prime is 152021321437. The reversal of 152021321431 is 134123120251.

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

It is a cyclic number.

It is not a de Polignac number, because 152021321431 - 2²³ = 152012932823 is a prime.

It is a super-2 number, since 2×152021321431² (a number of 23 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 = 152021321396 and 152021321405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152021321437) 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, 293477196 + ... + 293477713.

It is an arithmetic number, because the mean of its divisors is an integer number (22304286580).

Almost surely, 2^152021321431 is an apocalyptic number.

152021321431 is a deficient number, since it is larger than the sum of its proper divisors (26412971209).

152021321431 is an equidigital number, since it uses as much as digits as its factorization.

152021321431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586954953.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 152021321431 its reverse (134123120251), we get a palindrome (286144441682).

The spelling of 152021321431 in words is "one hundred fifty-two billion, twenty-one million, three hundred twenty-one thousand, four hundred thirty-one".