121302131492 has 6 divisors (see below), whose sum is σ = 212278730118. Its totient is φ = 60651065744.

The previous prime is 121302131479. The next prime is 121302131521. The reversal of 121302131492 is 294131203121.

It can be written as a sum of positive squares in only one way, i.e., 111652212736 + 9649918756 = 334144^2 + 98234^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15162766433 + ... + 15162766440.

It is an arithmetic number, because the mean of its divisors is an integer number (35379788353).

Almost surely, 2^121302131492 is an apocalyptic number.

It is an amenable number.

121302131492 is a deficient number, since it is larger than the sum of its proper divisors (90976598626).

121302131492 is a wasteful number, since it uses less digits than its factorization.

121302131492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30325532877 (or 30325532875 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 121302131492 in words is "one hundred twenty-one billion, three hundred two million, one hundred thirty-one thousand, four hundred ninety-two".