151130212421 has 2 divisors, whose sum is σ = 151130212422. Its totient is φ = 151130212420.

The previous prime is 151130212399. The next prime is 151130212427. The reversal of 151130212421 is 124212031151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137373268321 + 13756944100 = 370639^2 + 117290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151130212421 is a prime.

It is a super-2 number, since 2×151130212421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151130212427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75565106210 + 75565106211.

It is an arithmetic number, because the mean of its divisors is an integer number (75565106211).

Almost surely, 2^151130212421 is an apocalyptic number.

It is an amenable number.

151130212421 is a deficient number, since it is larger than the sum of its proper divisors (1).

151130212421 is an equidigital number, since it uses as much as digits as its factorization.

151130212421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 151130212421 its reverse (124212031151), we get a palindrome (275342243572).

The spelling of 151130212421 in words is "one hundred fifty-one billion, one hundred thirty million, two hundred twelve thousand, four hundred twenty-one".